diff options
Diffstat (limited to 'nginx/src/mail')
| -rw-r--r-- | nginx/src/mail/ngx_mail.c | 512 | ||||
| -rw-r--r-- | nginx/src/mail/ngx_mail.h | 412 | ||||
| -rw-r--r-- | nginx/src/mail/ngx_mail_auth_http_module.c | 1574 | ||||
| -rw-r--r-- | nginx/src/mail/ngx_mail_core_module.c | 678 | ||||
| -rw-r--r-- | nginx/src/mail/ngx_mail_handler.c | 900 | ||||
| -rw-r--r-- | nginx/src/mail/ngx_mail_imap_handler.c | 472 | ||||
| -rw-r--r-- | nginx/src/mail/ngx_mail_imap_module.c | 257 | ||||
| -rw-r--r-- | nginx/src/mail/ngx_mail_imap_module.h | 39 | ||||
| -rw-r--r-- | nginx/src/mail/ngx_mail_parse.c | 932 | ||||
| -rw-r--r-- | nginx/src/mail/ngx_mail_pop3_handler.c | 515 | ||||
| -rw-r--r-- | nginx/src/mail/ngx_mail_pop3_module.c | 322 | ||||
| -rw-r--r-- | nginx/src/mail/ngx_mail_pop3_module.h | 38 | ||||
| -rw-r--r-- | nginx/src/mail/ngx_mail_proxy_module.c | 1126 | ||||
| -rw-r--r-- | nginx/src/mail/ngx_mail_smtp_handler.c | 872 | ||||
| -rw-r--r-- | nginx/src/mail/ngx_mail_smtp_module.c | 311 | ||||
| -rw-r--r-- | nginx/src/mail/ngx_mail_smtp_module.h | 45 | ||||
| -rw-r--r-- | nginx/src/mail/ngx_mail_ssl_module.c | 662 | ||||
| -rw-r--r-- | nginx/src/mail/ngx_mail_ssl_module.h | 64 |
18 files changed, 0 insertions, 9731 deletions
diff --git a/nginx/src/mail/ngx_mail.c b/nginx/src/mail/ngx_mail.c deleted file mode 100644 index 5fd5fa0..0000000 --- a/nginx/src/mail/ngx_mail.c +++ /dev/null @@ -1,512 +0,0 @@ - -/* - * Copyright (C) Igor Sysoev - * Copyright (C) Nginx, Inc. - */ - - -#include <ngx_config.h> -#include <ngx_core.h> -#include <ngx_event.h> -#include <ngx_mail.h> - - -static char *ngx_mail_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); -static ngx_int_t ngx_mail_add_ports(ngx_conf_t *cf, ngx_array_t *ports, - ngx_mail_listen_t *listen); -static char *ngx_mail_optimize_servers(ngx_conf_t *cf, ngx_array_t *ports); -static ngx_int_t ngx_mail_add_addrs(ngx_conf_t *cf, ngx_mail_port_t *mport, - ngx_mail_conf_addr_t *addr); -#if (NGX_HAVE_INET6) -static ngx_int_t ngx_mail_add_addrs6(ngx_conf_t *cf, ngx_mail_port_t *mport, - ngx_mail_conf_addr_t *addr); -#endif -static ngx_int_t ngx_mail_cmp_conf_addrs(const void *one, const void *two); - - -ngx_uint_t ngx_mail_max_module; - - -static ngx_command_t ngx_mail_commands[] = { - - { ngx_string("mail"), - NGX_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_NOARGS, - ngx_mail_block, - 0, - 0, - NULL }, - - ngx_null_command -}; - - -static ngx_core_module_t ngx_mail_module_ctx = { - ngx_string("mail"), - NULL, - NULL -}; - - -ngx_module_t ngx_mail_module = { - NGX_MODULE_V1, - &ngx_mail_module_ctx, /* module context */ - ngx_mail_commands, /* module directives */ - NGX_CORE_MODULE, /* module type */ - NULL, /* init master */ - NULL, /* init module */ - NULL, /* init process */ - NULL, /* init thread */ - NULL, /* exit thread */ - NULL, /* exit process */ - NULL, /* exit master */ - NGX_MODULE_V1_PADDING -}; - - -static char * -ngx_mail_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) -{ - char *rv; - ngx_uint_t i, m, mi, s; - ngx_conf_t pcf; - ngx_array_t ports; - ngx_mail_listen_t *listen; - ngx_mail_module_t *module; - ngx_mail_conf_ctx_t *ctx; - ngx_mail_core_srv_conf_t **cscfp; - ngx_mail_core_main_conf_t *cmcf; - - if (*(ngx_mail_conf_ctx_t **) conf) { - return "is duplicate"; - } - - /* the main mail context */ - - ctx = ngx_pcalloc(cf->pool, sizeof(ngx_mail_conf_ctx_t)); - if (ctx == NULL) { - return NGX_CONF_ERROR; - } - - *(ngx_mail_conf_ctx_t **) conf = ctx; - - /* count the number of the mail modules and set up their indices */ - - ngx_mail_max_module = ngx_count_modules(cf->cycle, NGX_MAIL_MODULE); - - - /* the mail main_conf context, it is the same in the all mail contexts */ - - ctx->main_conf = ngx_pcalloc(cf->pool, - sizeof(void *) * ngx_mail_max_module); - if (ctx->main_conf == NULL) { - return NGX_CONF_ERROR; - } - - - /* - * the mail null srv_conf context, it is used to merge - * the server{}s' srv_conf's - */ - - ctx->srv_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_mail_max_module); - if (ctx->srv_conf == NULL) { - return NGX_CONF_ERROR; - } - - - /* - * create the main_conf's and the null srv_conf's of the all mail modules - */ - - for (m = 0; cf->cycle->modules[m]; m++) { - if (cf->cycle->modules[m]->type != NGX_MAIL_MODULE) { - continue; - } - - module = cf->cycle->modules[m]->ctx; - mi = cf->cycle->modules[m]->ctx_index; - - if (module->create_main_conf) { - ctx->main_conf[mi] = module->create_main_conf(cf); - if (ctx->main_conf[mi] == NULL) { - return NGX_CONF_ERROR; - } - } - - if (module->create_srv_conf) { - ctx->srv_conf[mi] = module->create_srv_conf(cf); - if (ctx->srv_conf[mi] == NULL) { - return NGX_CONF_ERROR; - } - } - } - - - /* parse inside the mail{} block */ - - pcf = *cf; - cf->ctx = ctx; - - cf->module_type = NGX_MAIL_MODULE; - cf->cmd_type = NGX_MAIL_MAIN_CONF; - rv = ngx_conf_parse(cf, NULL); - - if (rv != NGX_CONF_OK) { - *cf = pcf; - return rv; - } - - - /* init mail{} main_conf's, merge the server{}s' srv_conf's */ - - cmcf = ctx->main_conf[ngx_mail_core_module.ctx_index]; - cscfp = cmcf->servers.elts; - - for (m = 0; cf->cycle->modules[m]; m++) { - if (cf->cycle->modules[m]->type != NGX_MAIL_MODULE) { - continue; - } - - module = cf->cycle->modules[m]->ctx; - mi = cf->cycle->modules[m]->ctx_index; - - /* init mail{} main_conf's */ - - cf->ctx = ctx; - - if (module->init_main_conf) { - rv = module->init_main_conf(cf, ctx->main_conf[mi]); - if (rv != NGX_CONF_OK) { - *cf = pcf; - return rv; - } - } - - for (s = 0; s < cmcf->servers.nelts; s++) { - - /* merge the server{}s' srv_conf's */ - - cf->ctx = cscfp[s]->ctx; - - if (module->merge_srv_conf) { - rv = module->merge_srv_conf(cf, - ctx->srv_conf[mi], - cscfp[s]->ctx->srv_conf[mi]); - if (rv != NGX_CONF_OK) { - *cf = pcf; - return rv; - } - } - } - } - - *cf = pcf; - - - if (ngx_array_init(&ports, cf->temp_pool, 4, sizeof(ngx_mail_conf_port_t)) - != NGX_OK) - { - return NGX_CONF_ERROR; - } - - listen = cmcf->listen.elts; - - for (i = 0; i < cmcf->listen.nelts; i++) { - if (ngx_mail_add_ports(cf, &ports, &listen[i]) != NGX_OK) { - return NGX_CONF_ERROR; - } - } - - return ngx_mail_optimize_servers(cf, &ports); -} - - -static ngx_int_t -ngx_mail_add_ports(ngx_conf_t *cf, ngx_array_t *ports, - ngx_mail_listen_t *listen) -{ - in_port_t p; - ngx_uint_t i; - struct sockaddr *sa; - ngx_mail_conf_port_t *port; - ngx_mail_conf_addr_t *addr; - - sa = &listen->sockaddr.sockaddr; - p = ngx_inet_get_port(sa); - - port = ports->elts; - for (i = 0; i < ports->nelts; i++) { - if (p == port[i].port && sa->sa_family == port[i].family) { - - /* a port is already in the port list */ - - port = &port[i]; - goto found; - } - } - - /* add a port to the port list */ - - port = ngx_array_push(ports); - if (port == NULL) { - return NGX_ERROR; - } - - port->family = sa->sa_family; - port->port = p; - - if (ngx_array_init(&port->addrs, cf->temp_pool, 2, - sizeof(ngx_mail_conf_addr_t)) - != NGX_OK) - { - return NGX_ERROR; - } - -found: - - addr = ngx_array_push(&port->addrs); - if (addr == NULL) { - return NGX_ERROR; - } - - addr->opt = *listen; - - return NGX_OK; -} - - -static char * -ngx_mail_optimize_servers(ngx_conf_t *cf, ngx_array_t *ports) -{ - ngx_uint_t i, p, last, bind_wildcard; - ngx_listening_t *ls; - ngx_mail_port_t *mport; - ngx_mail_conf_port_t *port; - ngx_mail_conf_addr_t *addr; - ngx_mail_core_srv_conf_t *cscf; - - port = ports->elts; - for (p = 0; p < ports->nelts; p++) { - - ngx_sort(port[p].addrs.elts, (size_t) port[p].addrs.nelts, - sizeof(ngx_mail_conf_addr_t), ngx_mail_cmp_conf_addrs); - - addr = port[p].addrs.elts; - last = port[p].addrs.nelts; - - /* - * if there is the binding to the "*:port" then we need to bind() - * to the "*:port" only and ignore the other bindings - */ - - if (addr[last - 1].opt.wildcard) { - addr[last - 1].opt.bind = 1; - bind_wildcard = 1; - - } else { - bind_wildcard = 0; - } - - i = 0; - - while (i < last) { - - if (bind_wildcard && !addr[i].opt.bind) { - i++; - continue; - } - - ls = ngx_create_listening(cf, &addr[i].opt.sockaddr.sockaddr, - addr[i].opt.socklen); - if (ls == NULL) { - return NGX_CONF_ERROR; - } - - ls->addr_ntop = 1; - ls->handler = ngx_mail_init_connection; - ls->pool_size = 256; - - cscf = addr->opt.ctx->srv_conf[ngx_mail_core_module.ctx_index]; - - ls->logp = cscf->error_log; - ls->log.data = &ls->addr_text; - ls->log.handler = ngx_accept_log_error; - - ls->backlog = addr[i].opt.backlog; - ls->rcvbuf = addr[i].opt.rcvbuf; - ls->sndbuf = addr[i].opt.sndbuf; - - ls->keepalive = addr[i].opt.so_keepalive; -#if (NGX_HAVE_KEEPALIVE_TUNABLE) - ls->keepidle = addr[i].opt.tcp_keepidle; - ls->keepintvl = addr[i].opt.tcp_keepintvl; - ls->keepcnt = addr[i].opt.tcp_keepcnt; -#endif - -#if (NGX_HAVE_INET6) - ls->ipv6only = addr[i].opt.ipv6only; -#endif - - mport = ngx_palloc(cf->pool, sizeof(ngx_mail_port_t)); - if (mport == NULL) { - return NGX_CONF_ERROR; - } - - ls->servers = mport; - - mport->naddrs = i + 1; - - switch (ls->sockaddr->sa_family) { -#if (NGX_HAVE_INET6) - case AF_INET6: - if (ngx_mail_add_addrs6(cf, mport, addr) != NGX_OK) { - return NGX_CONF_ERROR; - } - break; -#endif - default: /* AF_INET */ - if (ngx_mail_add_addrs(cf, mport, addr) != NGX_OK) { - return NGX_CONF_ERROR; - } - break; - } - - addr++; - last--; - } - } - - return NGX_CONF_OK; -} - - -static ngx_int_t -ngx_mail_add_addrs(ngx_conf_t *cf, ngx_mail_port_t *mport, - ngx_mail_conf_addr_t *addr) -{ - u_char *p; - size_t len; - ngx_uint_t i; - ngx_mail_in_addr_t *addrs; - struct sockaddr_in *sin; - u_char buf[NGX_SOCKADDR_STRLEN]; - - mport->addrs = ngx_pcalloc(cf->pool, - mport->naddrs * sizeof(ngx_mail_in_addr_t)); - if (mport->addrs == NULL) { - return NGX_ERROR; - } - - addrs = mport->addrs; - - for (i = 0; i < mport->naddrs; i++) { - - sin = &addr[i].opt.sockaddr.sockaddr_in; - addrs[i].addr = sin->sin_addr.s_addr; - - addrs[i].conf.ctx = addr[i].opt.ctx; -#if (NGX_MAIL_SSL) - addrs[i].conf.ssl = addr[i].opt.ssl; -#endif - - len = ngx_sock_ntop(&addr[i].opt.sockaddr.sockaddr, addr[i].opt.socklen, - buf, NGX_SOCKADDR_STRLEN, 1); - - p = ngx_pnalloc(cf->pool, len); - if (p == NULL) { - return NGX_ERROR; - } - - ngx_memcpy(p, buf, len); - - addrs[i].conf.addr_text.len = len; - addrs[i].conf.addr_text.data = p; - } - - return NGX_OK; -} - - -#if (NGX_HAVE_INET6) - -static ngx_int_t -ngx_mail_add_addrs6(ngx_conf_t *cf, ngx_mail_port_t *mport, - ngx_mail_conf_addr_t *addr) -{ - u_char *p; - size_t len; - ngx_uint_t i; - ngx_mail_in6_addr_t *addrs6; - struct sockaddr_in6 *sin6; - u_char buf[NGX_SOCKADDR_STRLEN]; - - mport->addrs = ngx_pcalloc(cf->pool, - mport->naddrs * sizeof(ngx_mail_in6_addr_t)); - if (mport->addrs == NULL) { - return NGX_ERROR; - } - - addrs6 = mport->addrs; - - for (i = 0; i < mport->naddrs; i++) { - - sin6 = &addr[i].opt.sockaddr.sockaddr_in6; - addrs6[i].addr6 = sin6->sin6_addr; - - addrs6[i].conf.ctx = addr[i].opt.ctx; -#if (NGX_MAIL_SSL) - addrs6[i].conf.ssl = addr[i].opt.ssl; -#endif - - len = ngx_sock_ntop(&addr[i].opt.sockaddr.sockaddr, addr[i].opt.socklen, - buf, NGX_SOCKADDR_STRLEN, 1); - - p = ngx_pnalloc(cf->pool, len); - if (p == NULL) { - return NGX_ERROR; - } - - ngx_memcpy(p, buf, len); - - addrs6[i].conf.addr_text.len = len; - addrs6[i].conf.addr_text.data = p; - } - - return NGX_OK; -} - -#endif - - -static ngx_int_t -ngx_mail_cmp_conf_addrs(const void *one, const void *two) -{ - ngx_mail_conf_addr_t *first, *second; - - first = (ngx_mail_conf_addr_t *) one; - second = (ngx_mail_conf_addr_t *) two; - - if (first->opt.wildcard) { - /* a wildcard must be the last resort, shift it to the end */ - return 1; - } - - if (second->opt.wildcard) { - /* a wildcard must be the last resort, shift it to the end */ - return -1; - } - - if (first->opt.bind && !second->opt.bind) { - /* shift explicit bind()ed addresses to the start */ - return -1; - } - - if (!first->opt.bind && second->opt.bind) { - /* shift explicit bind()ed addresses to the start */ - return 1; - } - - /* do not sort by default */ - - return 0; -} diff --git a/nginx/src/mail/ngx_mail.h b/nginx/src/mail/ngx_mail.h deleted file mode 100644 index 6ecfefc..0000000 --- a/nginx/src/mail/ngx_mail.h +++ /dev/null @@ -1,412 +0,0 @@ - -/* - * Copyright (C) Igor Sysoev - * Copyright (C) Nginx, Inc. - */ - - -#ifndef _NGX_MAIL_H_INCLUDED_ -#define _NGX_MAIL_H_INCLUDED_ - - -#include <ngx_config.h> -#include <ngx_core.h> -#include <ngx_event.h> -#include <ngx_event_connect.h> - -#if (NGX_MAIL_SSL) -#include <ngx_mail_ssl_module.h> -#endif - - - -typedef struct { - void **main_conf; - void **srv_conf; -} ngx_mail_conf_ctx_t; - - -typedef struct { - ngx_sockaddr_t sockaddr; - socklen_t socklen; - - /* server ctx */ - ngx_mail_conf_ctx_t *ctx; - - unsigned bind:1; - unsigned wildcard:1; - unsigned ssl:1; -#if (NGX_HAVE_INET6) - unsigned ipv6only:1; -#endif - unsigned so_keepalive:2; -#if (NGX_HAVE_KEEPALIVE_TUNABLE) - int tcp_keepidle; - int tcp_keepintvl; - int tcp_keepcnt; -#endif - int backlog; - int rcvbuf; - int sndbuf; -} ngx_mail_listen_t; - - -typedef struct { - ngx_mail_conf_ctx_t *ctx; - ngx_str_t addr_text; - ngx_uint_t ssl; /* unsigned ssl:1; */ -} ngx_mail_addr_conf_t; - -typedef struct { - in_addr_t addr; - ngx_mail_addr_conf_t conf; -} ngx_mail_in_addr_t; - - -#if (NGX_HAVE_INET6) - -typedef struct { - struct in6_addr addr6; - ngx_mail_addr_conf_t conf; -} ngx_mail_in6_addr_t; - -#endif - - -typedef struct { - /* ngx_mail_in_addr_t or ngx_mail_in6_addr_t */ - void *addrs; - ngx_uint_t naddrs; -} ngx_mail_port_t; - - -typedef struct { - int family; - in_port_t port; - ngx_array_t addrs; /* array of ngx_mail_conf_addr_t */ -} ngx_mail_conf_port_t; - - -typedef struct { - ngx_mail_listen_t opt; -} ngx_mail_conf_addr_t; - - -typedef struct { - ngx_array_t servers; /* ngx_mail_core_srv_conf_t */ - ngx_array_t listen; /* ngx_mail_listen_t */ -} ngx_mail_core_main_conf_t; - - -#define NGX_MAIL_POP3_PROTOCOL 0 -#define NGX_MAIL_IMAP_PROTOCOL 1 -#define NGX_MAIL_SMTP_PROTOCOL 2 - - -typedef struct ngx_mail_protocol_s ngx_mail_protocol_t; - - -typedef struct { - ngx_mail_protocol_t *protocol; - - ngx_msec_t timeout; - ngx_msec_t resolver_timeout; - - ngx_str_t server_name; - - u_char *file_name; - ngx_uint_t line; - - ngx_resolver_t *resolver; - ngx_log_t *error_log; - - /* server ctx */ - ngx_mail_conf_ctx_t *ctx; - - ngx_uint_t listen; /* unsigned listen:1; */ -} ngx_mail_core_srv_conf_t; - - -typedef enum { - ngx_pop3_start = 0, - ngx_pop3_user, - ngx_pop3_passwd, - ngx_pop3_auth_login_username, - ngx_pop3_auth_login_password, - ngx_pop3_auth_plain, - ngx_pop3_auth_cram_md5, - ngx_pop3_auth_external -} ngx_pop3_state_e; - - -typedef enum { - ngx_imap_start = 0, - ngx_imap_auth_login_username, - ngx_imap_auth_login_password, - ngx_imap_auth_plain, - ngx_imap_auth_cram_md5, - ngx_imap_auth_external, - ngx_imap_login, - ngx_imap_user, - ngx_imap_passwd -} ngx_imap_state_e; - - -typedef enum { - ngx_smtp_start = 0, - ngx_smtp_auth_login_username, - ngx_smtp_auth_login_password, - ngx_smtp_auth_plain, - ngx_smtp_auth_cram_md5, - ngx_smtp_auth_external, - ngx_smtp_helo, - ngx_smtp_helo_xclient, - ngx_smtp_helo_from, - ngx_smtp_xclient, - ngx_smtp_xclient_from, - ngx_smtp_xclient_helo, - ngx_smtp_from, - ngx_smtp_to -} ngx_smtp_state_e; - - -typedef struct { - ngx_peer_connection_t upstream; - ngx_buf_t *buffer; -} ngx_mail_proxy_ctx_t; - - -typedef struct { - uint32_t signature; /* "MAIL" */ - - ngx_connection_t *connection; - - ngx_str_t out; - ngx_buf_t *buffer; - - void **ctx; - void **main_conf; - void **srv_conf; - - ngx_resolver_ctx_t *resolver_ctx; - - ngx_mail_proxy_ctx_t *proxy; - - ngx_uint_t mail_state; - - unsigned protocol:3; - unsigned blocked:1; - unsigned quit:1; - unsigned quoted:1; - unsigned backslash:1; - unsigned no_sync_literal:1; - unsigned starttls:1; - unsigned esmtp:1; - unsigned auth_method:3; - unsigned auth_wait:1; - - ngx_str_t login; - ngx_str_t passwd; - - ngx_str_t salt; - ngx_str_t tag; - ngx_str_t tagged_line; - ngx_str_t text; - - ngx_str_t *addr_text; - ngx_str_t host; - ngx_str_t smtp_helo; - ngx_str_t smtp_from; - ngx_str_t smtp_to; - - ngx_str_t cmd; - - ngx_uint_t command; - ngx_array_t args; - - ngx_uint_t login_attempt; - - /* used to parse POP3/IMAP/SMTP command */ - - ngx_uint_t state; - u_char *cmd_start; - u_char *arg_start; - u_char *arg_end; - ngx_uint_t literal_len; -} ngx_mail_session_t; - - -typedef struct { - ngx_str_t *client; - ngx_mail_session_t *session; -} ngx_mail_log_ctx_t; - - -#define NGX_POP3_USER 1 -#define NGX_POP3_PASS 2 -#define NGX_POP3_CAPA 3 -#define NGX_POP3_QUIT 4 -#define NGX_POP3_NOOP 5 -#define NGX_POP3_STLS 6 -#define NGX_POP3_APOP 7 -#define NGX_POP3_AUTH 8 -#define NGX_POP3_STAT 9 -#define NGX_POP3_LIST 10 -#define NGX_POP3_RETR 11 -#define NGX_POP3_DELE 12 -#define NGX_POP3_RSET 13 -#define NGX_POP3_TOP 14 -#define NGX_POP3_UIDL 15 - - -#define NGX_IMAP_LOGIN 1 -#define NGX_IMAP_LOGOUT 2 -#define NGX_IMAP_CAPABILITY 3 -#define NGX_IMAP_NOOP 4 -#define NGX_IMAP_STARTTLS 5 - -#define NGX_IMAP_NEXT 6 - -#define NGX_IMAP_AUTHENTICATE 7 - - -#define NGX_SMTP_HELO 1 -#define NGX_SMTP_EHLO 2 -#define NGX_SMTP_AUTH 3 -#define NGX_SMTP_QUIT 4 -#define NGX_SMTP_NOOP 5 -#define NGX_SMTP_MAIL 6 -#define NGX_SMTP_RSET 7 -#define NGX_SMTP_RCPT 8 -#define NGX_SMTP_DATA 9 -#define NGX_SMTP_VRFY 10 -#define NGX_SMTP_EXPN 11 -#define NGX_SMTP_HELP 12 -#define NGX_SMTP_STARTTLS 13 - - -#define NGX_MAIL_AUTH_PLAIN 0 -#define NGX_MAIL_AUTH_LOGIN 1 -#define NGX_MAIL_AUTH_LOGIN_USERNAME 2 -#define NGX_MAIL_AUTH_APOP 3 -#define NGX_MAIL_AUTH_CRAM_MD5 4 -#define NGX_MAIL_AUTH_EXTERNAL 5 -#define NGX_MAIL_AUTH_NONE 6 - - -#define NGX_MAIL_AUTH_PLAIN_ENABLED 0x0002 -#define NGX_MAIL_AUTH_LOGIN_ENABLED 0x0004 -#define NGX_MAIL_AUTH_APOP_ENABLED 0x0008 -#define NGX_MAIL_AUTH_CRAM_MD5_ENABLED 0x0010 -#define NGX_MAIL_AUTH_EXTERNAL_ENABLED 0x0020 -#define NGX_MAIL_AUTH_NONE_ENABLED 0x0040 - - -#define NGX_MAIL_PARSE_INVALID_COMMAND 20 - - -typedef void (*ngx_mail_init_session_pt)(ngx_mail_session_t *s, - ngx_connection_t *c); -typedef void (*ngx_mail_init_protocol_pt)(ngx_event_t *rev); -typedef void (*ngx_mail_auth_state_pt)(ngx_event_t *rev); -typedef ngx_int_t (*ngx_mail_parse_command_pt)(ngx_mail_session_t *s); - - -struct ngx_mail_protocol_s { - ngx_str_t name; - in_port_t port[4]; - ngx_uint_t type; - - ngx_mail_init_session_pt init_session; - ngx_mail_init_protocol_pt init_protocol; - ngx_mail_parse_command_pt parse_command; - ngx_mail_auth_state_pt auth_state; - - ngx_str_t internal_server_error; - ngx_str_t cert_error; - ngx_str_t no_cert; -}; - - -typedef struct { - ngx_mail_protocol_t *protocol; - - void *(*create_main_conf)(ngx_conf_t *cf); - char *(*init_main_conf)(ngx_conf_t *cf, void *conf); - - void *(*create_srv_conf)(ngx_conf_t *cf); - char *(*merge_srv_conf)(ngx_conf_t *cf, void *prev, - void *conf); -} ngx_mail_module_t; - - -#define NGX_MAIL_MODULE 0x4C49414D /* "MAIL" */ - -#define NGX_MAIL_MAIN_CONF 0x02000000 -#define NGX_MAIL_SRV_CONF 0x04000000 - - -#define NGX_MAIL_MAIN_CONF_OFFSET offsetof(ngx_mail_conf_ctx_t, main_conf) -#define NGX_MAIL_SRV_CONF_OFFSET offsetof(ngx_mail_conf_ctx_t, srv_conf) - - -#define ngx_mail_get_module_ctx(s, module) (s)->ctx[module.ctx_index] -#define ngx_mail_set_ctx(s, c, module) s->ctx[module.ctx_index] = c; -#define ngx_mail_delete_ctx(s, module) s->ctx[module.ctx_index] = NULL; - - -#define ngx_mail_get_module_main_conf(s, module) \ - (s)->main_conf[module.ctx_index] -#define ngx_mail_get_module_srv_conf(s, module) (s)->srv_conf[module.ctx_index] - -#define ngx_mail_conf_get_module_main_conf(cf, module) \ - ((ngx_mail_conf_ctx_t *) cf->ctx)->main_conf[module.ctx_index] -#define ngx_mail_conf_get_module_srv_conf(cf, module) \ - ((ngx_mail_conf_ctx_t *) cf->ctx)->srv_conf[module.ctx_index] - - -#if (NGX_MAIL_SSL) -void ngx_mail_starttls_handler(ngx_event_t *rev); -ngx_int_t ngx_mail_starttls_only(ngx_mail_session_t *s, ngx_connection_t *c); -#endif - - -void ngx_mail_init_connection(ngx_connection_t *c); - -ngx_int_t ngx_mail_salt(ngx_mail_session_t *s, ngx_connection_t *c, - ngx_mail_core_srv_conf_t *cscf); -ngx_int_t ngx_mail_auth_plain(ngx_mail_session_t *s, ngx_connection_t *c, - ngx_uint_t n); -ngx_int_t ngx_mail_auth_login_username(ngx_mail_session_t *s, - ngx_connection_t *c, ngx_uint_t n); -ngx_int_t ngx_mail_auth_login_password(ngx_mail_session_t *s, - ngx_connection_t *c); -ngx_int_t ngx_mail_auth_cram_md5_salt(ngx_mail_session_t *s, - ngx_connection_t *c, char *prefix, size_t len); -ngx_int_t ngx_mail_auth_cram_md5(ngx_mail_session_t *s, ngx_connection_t *c); -ngx_int_t ngx_mail_auth_external(ngx_mail_session_t *s, ngx_connection_t *c, - ngx_uint_t n); -ngx_int_t ngx_mail_auth_parse(ngx_mail_session_t *s, ngx_connection_t *c); - -void ngx_mail_send(ngx_event_t *wev); -ngx_int_t ngx_mail_read_command(ngx_mail_session_t *s, ngx_connection_t *c); -void ngx_mail_auth(ngx_mail_session_t *s, ngx_connection_t *c); -void ngx_mail_close_connection(ngx_connection_t *c); -void ngx_mail_session_internal_server_error(ngx_mail_session_t *s); -u_char *ngx_mail_log_error(ngx_log_t *log, u_char *buf, size_t len); - - -char *ngx_mail_capabilities(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); - - -/* STUB */ -void ngx_mail_proxy_init(ngx_mail_session_t *s, ngx_addr_t *peer); -void ngx_mail_auth_http_init(ngx_mail_session_t *s); -/**/ - - -extern ngx_uint_t ngx_mail_max_module; -extern ngx_module_t ngx_mail_core_module; - - -#endif /* _NGX_MAIL_H_INCLUDED_ */ diff --git a/nginx/src/mail/ngx_mail_auth_http_module.c b/nginx/src/mail/ngx_mail_auth_http_module.c deleted file mode 100644 index 6b57358..0000000 --- a/nginx/src/mail/ngx_mail_auth_http_module.c +++ /dev/null @@ -1,1574 +0,0 @@ - -/* - * Copyright (C) Igor Sysoev - * Copyright (C) Nginx, Inc. - */ - - -#include <ngx_config.h> -#include <ngx_core.h> -#include <ngx_event.h> -#include <ngx_event_connect.h> -#include <ngx_mail.h> - - -typedef struct { - ngx_addr_t *peer; - - ngx_msec_t timeout; - ngx_flag_t pass_client_cert; - - ngx_str_t host_header; - ngx_str_t uri; - ngx_str_t header; - - ngx_array_t *headers; - - u_char *file; - ngx_uint_t line; -} ngx_mail_auth_http_conf_t; - - -typedef struct ngx_mail_auth_http_ctx_s ngx_mail_auth_http_ctx_t; - -typedef void (*ngx_mail_auth_http_handler_pt)(ngx_mail_session_t *s, - ngx_mail_auth_http_ctx_t *ctx); - -struct ngx_mail_auth_http_ctx_s { - ngx_buf_t *request; - ngx_buf_t *response; - ngx_peer_connection_t peer; - - ngx_mail_auth_http_handler_pt handler; - - ngx_uint_t state; - - u_char *header_name_start; - u_char *header_name_end; - u_char *header_start; - u_char *header_end; - - ngx_str_t addr; - ngx_str_t port; - ngx_str_t err; - ngx_str_t errmsg; - ngx_str_t errcode; - - time_t sleep; - - ngx_pool_t *pool; -}; - - -static void ngx_mail_auth_http_write_handler(ngx_event_t *wev); -static void ngx_mail_auth_http_read_handler(ngx_event_t *rev); -static void ngx_mail_auth_http_ignore_status_line(ngx_mail_session_t *s, - ngx_mail_auth_http_ctx_t *ctx); -static void ngx_mail_auth_http_process_headers(ngx_mail_session_t *s, - ngx_mail_auth_http_ctx_t *ctx); -static void ngx_mail_auth_sleep_handler(ngx_event_t *rev); -static ngx_int_t ngx_mail_auth_http_parse_header_line(ngx_mail_session_t *s, - ngx_mail_auth_http_ctx_t *ctx); -static void ngx_mail_auth_http_block_read(ngx_event_t *rev); -static void ngx_mail_auth_http_dummy_handler(ngx_event_t *ev); -static ngx_buf_t *ngx_mail_auth_http_create_request(ngx_mail_session_t *s, - ngx_pool_t *pool, ngx_mail_auth_http_conf_t *ahcf); -static ngx_int_t ngx_mail_auth_http_escape(ngx_pool_t *pool, ngx_str_t *text, - ngx_str_t *escaped); - -static void *ngx_mail_auth_http_create_conf(ngx_conf_t *cf); -static char *ngx_mail_auth_http_merge_conf(ngx_conf_t *cf, void *parent, - void *child); -static char *ngx_mail_auth_http(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); -static char *ngx_mail_auth_http_header(ngx_conf_t *cf, ngx_command_t *cmd, - void *conf); - - -static ngx_command_t ngx_mail_auth_http_commands[] = { - - { ngx_string("auth_http"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, - ngx_mail_auth_http, - NGX_MAIL_SRV_CONF_OFFSET, - 0, - NULL }, - - { ngx_string("auth_http_timeout"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, - ngx_conf_set_msec_slot, - NGX_MAIL_SRV_CONF_OFFSET, - offsetof(ngx_mail_auth_http_conf_t, timeout), - NULL }, - - { ngx_string("auth_http_header"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE2, - ngx_mail_auth_http_header, - NGX_MAIL_SRV_CONF_OFFSET, - 0, - NULL }, - - { ngx_string("auth_http_pass_client_cert"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_FLAG, - ngx_conf_set_flag_slot, - NGX_MAIL_SRV_CONF_OFFSET, - offsetof(ngx_mail_auth_http_conf_t, pass_client_cert), - NULL }, - - ngx_null_command -}; - - -static ngx_mail_module_t ngx_mail_auth_http_module_ctx = { - NULL, /* protocol */ - - NULL, /* create main configuration */ - NULL, /* init main configuration */ - - ngx_mail_auth_http_create_conf, /* create server configuration */ - ngx_mail_auth_http_merge_conf /* merge server configuration */ -}; - - -ngx_module_t ngx_mail_auth_http_module = { - NGX_MODULE_V1, - &ngx_mail_auth_http_module_ctx, /* module context */ - ngx_mail_auth_http_commands, /* module directives */ - NGX_MAIL_MODULE, /* module type */ - NULL, /* init master */ - NULL, /* init module */ - NULL, /* init process */ - NULL, /* init thread */ - NULL, /* exit thread */ - NULL, /* exit process */ - NULL, /* exit master */ - NGX_MODULE_V1_PADDING -}; - - -static ngx_str_t ngx_mail_auth_http_method[] = { - ngx_string("plain"), - ngx_string("plain"), - ngx_string("plain"), - ngx_string("apop"), - ngx_string("cram-md5"), - ngx_string("external"), - ngx_string("none") -}; - -static ngx_str_t ngx_mail_smtp_errcode = ngx_string("535 5.7.0"); - - -void -ngx_mail_auth_http_init(ngx_mail_session_t *s) -{ - ngx_int_t rc; - ngx_pool_t *pool; - ngx_mail_auth_http_ctx_t *ctx; - ngx_mail_auth_http_conf_t *ahcf; - - s->connection->log->action = "in http auth state"; - - pool = ngx_create_pool(2048, s->connection->log); - if (pool == NULL) { - ngx_mail_session_internal_server_error(s); - return; - } - - ctx = ngx_pcalloc(pool, sizeof(ngx_mail_auth_http_ctx_t)); - if (ctx == NULL) { - ngx_destroy_pool(pool); - ngx_mail_session_internal_server_error(s); - return; - } - - ctx->pool = pool; - - ahcf = ngx_mail_get_module_srv_conf(s, ngx_mail_auth_http_module); - - ctx->request = ngx_mail_auth_http_create_request(s, pool, ahcf); - if (ctx->request == NULL) { - ngx_destroy_pool(ctx->pool); - ngx_mail_session_internal_server_error(s); - return; - } - - ngx_mail_set_ctx(s, ctx, ngx_mail_auth_http_module); - - ctx->peer.sockaddr = ahcf->peer->sockaddr; - ctx->peer.socklen = ahcf->peer->socklen; - ctx->peer.name = &ahcf->peer->name; - ctx->peer.get = ngx_event_get_peer; - ctx->peer.log = s->connection->log; - ctx->peer.log_error = NGX_ERROR_ERR; - - rc = ngx_event_connect_peer(&ctx->peer); - - if (rc == NGX_ERROR || rc == NGX_BUSY || rc == NGX_DECLINED) { - if (ctx->peer.connection) { - ngx_close_connection(ctx->peer.connection); - } - - ngx_destroy_pool(ctx->pool); - ngx_mail_session_internal_server_error(s); - return; - } - - ctx->peer.connection->data = s; - ctx->peer.connection->pool = s->connection->pool; - - s->connection->read->handler = ngx_mail_auth_http_block_read; - ctx->peer.connection->read->handler = ngx_mail_auth_http_read_handler; - ctx->peer.connection->write->handler = ngx_mail_auth_http_write_handler; - - ctx->handler = ngx_mail_auth_http_ignore_status_line; - - ngx_add_timer(ctx->peer.connection->read, ahcf->timeout); - ngx_add_timer(ctx->peer.connection->write, ahcf->timeout); - - if (rc == NGX_OK) { - ngx_mail_auth_http_write_handler(ctx->peer.connection->write); - return; - } -} - - -static void -ngx_mail_auth_http_write_handler(ngx_event_t *wev) -{ - ssize_t n, size; - ngx_connection_t *c; - ngx_mail_session_t *s; - ngx_mail_auth_http_ctx_t *ctx; - ngx_mail_auth_http_conf_t *ahcf; - - c = wev->data; - s = c->data; - - ctx = ngx_mail_get_module_ctx(s, ngx_mail_auth_http_module); - - ngx_log_debug0(NGX_LOG_DEBUG_MAIL, wev->log, 0, - "mail auth http write handler"); - - if (wev->timedout) { - ngx_log_error(NGX_LOG_ERR, wev->log, NGX_ETIMEDOUT, - "auth http server %V timed out", ctx->peer.name); - ngx_close_connection(c); - ngx_destroy_pool(ctx->pool); - ngx_mail_session_internal_server_error(s); - return; - } - - size = ctx->request->last - ctx->request->pos; - - n = ngx_send(c, ctx->request->pos, size); - - if (n == NGX_ERROR) { - ngx_close_connection(c); - ngx_destroy_pool(ctx->pool); - ngx_mail_session_internal_server_error(s); - return; - } - - if (n > 0) { - ctx->request->pos += n; - - if (n == size) { - wev->handler = ngx_mail_auth_http_dummy_handler; - - if (wev->timer_set) { - ngx_del_timer(wev); - } - - if (ngx_handle_write_event(wev, 0) != NGX_OK) { - ngx_close_connection(c); - ngx_destroy_pool(ctx->pool); - ngx_mail_session_internal_server_error(s); - } - - return; - } - } - - if (!wev->timer_set) { - ahcf = ngx_mail_get_module_srv_conf(s, ngx_mail_auth_http_module); - ngx_add_timer(wev, ahcf->timeout); - } -} - - -static void -ngx_mail_auth_http_read_handler(ngx_event_t *rev) -{ - ssize_t n, size; - ngx_connection_t *c; - ngx_mail_session_t *s; - ngx_mail_auth_http_ctx_t *ctx; - - c = rev->data; - s = c->data; - - ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, - "mail auth http read handler"); - - ctx = ngx_mail_get_module_ctx(s, ngx_mail_auth_http_module); - - if (rev->timedout) { - ngx_log_error(NGX_LOG_ERR, rev->log, NGX_ETIMEDOUT, - "auth http server %V timed out", ctx->peer.name); - ngx_close_connection(c); - ngx_destroy_pool(ctx->pool); - ngx_mail_session_internal_server_error(s); - return; - } - - if (ctx->response == NULL) { - ctx->response = ngx_create_temp_buf(ctx->pool, 1024); - if (ctx->response == NULL) { - ngx_close_connection(c); - ngx_destroy_pool(ctx->pool); - ngx_mail_session_internal_server_error(s); - return; - } - } - - size = ctx->response->end - ctx->response->last; - - n = ngx_recv(c, ctx->response->pos, size); - - if (n > 0) { - ctx->response->last += n; - - ctx->handler(s, ctx); - return; - } - - if (n == NGX_AGAIN) { - return; - } - - ngx_close_connection(c); - ngx_destroy_pool(ctx->pool); - ngx_mail_session_internal_server_error(s); -} - - -static void -ngx_mail_auth_http_ignore_status_line(ngx_mail_session_t *s, - ngx_mail_auth_http_ctx_t *ctx) -{ - u_char *p, ch; - enum { - sw_start = 0, - sw_H, - sw_HT, - sw_HTT, - sw_HTTP, - sw_skip, - sw_almost_done - } state; - - ngx_log_debug0(NGX_LOG_DEBUG_MAIL, s->connection->log, 0, - "mail auth http process status line"); - - state = ctx->state; - - for (p = ctx->response->pos; p < ctx->response->last; p++) { - ch = *p; - - switch (state) { - - /* "HTTP/" */ - case sw_start: - if (ch == 'H') { - state = sw_H; - break; - } - goto next; - - case sw_H: - if (ch == 'T') { - state = sw_HT; - break; - } - goto next; - - case sw_HT: - if (ch == 'T') { - state = sw_HTT; - break; - } - goto next; - - case sw_HTT: - if (ch == 'P') { - state = sw_HTTP; - break; - } - goto next; - - case sw_HTTP: - if (ch == '/') { - state = sw_skip; - break; - } - goto next; - - /* any text until end of line */ - case sw_skip: - switch (ch) { - case CR: - state = sw_almost_done; - - break; - case LF: - goto done; - } - break; - - /* end of status line */ - case sw_almost_done: - if (ch == LF) { - goto done; - } - - ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, - "auth http server %V sent invalid response", - ctx->peer.name); - ngx_close_connection(ctx->peer.connection); - ngx_destroy_pool(ctx->pool); - ngx_mail_session_internal_server_error(s); - return; - } - } - - ctx->response->pos = p; - ctx->state = state; - - return; - -next: - - p = ctx->response->start - 1; - -done: - - ctx->response->pos = p + 1; - ctx->state = 0; - ctx->handler = ngx_mail_auth_http_process_headers; - ctx->handler(s, ctx); -} - - -static void -ngx_mail_auth_http_process_headers(ngx_mail_session_t *s, - ngx_mail_auth_http_ctx_t *ctx) -{ - u_char *p; - time_t timer; - size_t len, size; - ngx_int_t rc, port, n; - ngx_addr_t *peer; - - ngx_log_debug0(NGX_LOG_DEBUG_MAIL, s->connection->log, 0, - "mail auth http process headers"); - - for ( ;; ) { - rc = ngx_mail_auth_http_parse_header_line(s, ctx); - - if (rc == NGX_OK) { - -#if (NGX_DEBUG) - { - ngx_str_t key, value; - - key.len = ctx->header_name_end - ctx->header_name_start; - key.data = ctx->header_name_start; - value.len = ctx->header_end - ctx->header_start; - value.data = ctx->header_start; - - ngx_log_debug2(NGX_LOG_DEBUG_MAIL, s->connection->log, 0, - "mail auth http header: \"%V: %V\"", - &key, &value); - } -#endif - - len = ctx->header_name_end - ctx->header_name_start; - - if (len == sizeof("Auth-Status") - 1 - && ngx_strncasecmp(ctx->header_name_start, - (u_char *) "Auth-Status", - sizeof("Auth-Status") - 1) - == 0) - { - len = ctx->header_end - ctx->header_start; - - if (len == 2 - && ctx->header_start[0] == 'O' - && ctx->header_start[1] == 'K') - { - continue; - } - - if (len == 4 - && ctx->header_start[0] == 'W' - && ctx->header_start[1] == 'A' - && ctx->header_start[2] == 'I' - && ctx->header_start[3] == 'T') - { - s->auth_wait = 1; - continue; - } - - ctx->errmsg.len = len; - ctx->errmsg.data = ctx->header_start; - - switch (s->protocol) { - - case NGX_MAIL_POP3_PROTOCOL: - size = sizeof("-ERR ") - 1 + len + sizeof(CRLF) - 1; - break; - - case NGX_MAIL_IMAP_PROTOCOL: - size = s->tag.len + sizeof("NO ") - 1 + len - + sizeof(CRLF) - 1; - break; - - default: /* NGX_MAIL_SMTP_PROTOCOL */ - ctx->err = ctx->errmsg; - continue; - } - - p = ngx_pnalloc(s->connection->pool, size); - if (p == NULL) { - ngx_close_connection(ctx->peer.connection); - ngx_destroy_pool(ctx->pool); - ngx_mail_session_internal_server_error(s); - return; - } - - ctx->err.data = p; - - switch (s->protocol) { - - case NGX_MAIL_POP3_PROTOCOL: - *p++ = '-'; *p++ = 'E'; *p++ = 'R'; *p++ = 'R'; *p++ = ' '; - break; - - case NGX_MAIL_IMAP_PROTOCOL: - p = ngx_cpymem(p, s->tag.data, s->tag.len); - *p++ = 'N'; *p++ = 'O'; *p++ = ' '; - break; - - default: /* NGX_MAIL_SMTP_PROTOCOL */ - break; - } - - p = ngx_cpymem(p, ctx->header_start, len); - *p++ = CR; *p++ = LF; - - ctx->err.len = p - ctx->err.data; - - continue; - } - - if (len == sizeof("Auth-Server") - 1 - && ngx_strncasecmp(ctx->header_name_start, - (u_char *) "Auth-Server", - sizeof("Auth-Server") - 1) - == 0) - { - ctx->addr.len = ctx->header_end - ctx->header_start; - ctx->addr.data = ctx->header_start; - - continue; - } - - if (len == sizeof("Auth-Port") - 1 - && ngx_strncasecmp(ctx->header_name_start, - (u_char *) "Auth-Port", - sizeof("Auth-Port") - 1) - == 0) - { - ctx->port.len = ctx->header_end - ctx->header_start; - ctx->port.data = ctx->header_start; - - continue; - } - - if (len == sizeof("Auth-User") - 1 - && ngx_strncasecmp(ctx->header_name_start, - (u_char *) "Auth-User", - sizeof("Auth-User") - 1) - == 0) - { - s->login.len = ctx->header_end - ctx->header_start; - - s->login.data = ngx_pnalloc(s->connection->pool, s->login.len); - if (s->login.data == NULL) { - ngx_close_connection(ctx->peer.connection); - ngx_destroy_pool(ctx->pool); - ngx_mail_session_internal_server_error(s); - return; - } - - ngx_memcpy(s->login.data, ctx->header_start, s->login.len); - - continue; - } - - if (len == sizeof("Auth-Pass") - 1 - && ngx_strncasecmp(ctx->header_name_start, - (u_char *) "Auth-Pass", - sizeof("Auth-Pass") - 1) - == 0) - { - s->passwd.len = ctx->header_end - ctx->header_start; - - s->passwd.data = ngx_pnalloc(s->connection->pool, - s->passwd.len); - if (s->passwd.data == NULL) { - ngx_close_connection(ctx->peer.connection); - ngx_destroy_pool(ctx->pool); - ngx_mail_session_internal_server_error(s); - return; - } - - ngx_memcpy(s->passwd.data, ctx->header_start, s->passwd.len); - - continue; - } - - if (len == sizeof("Auth-Wait") - 1 - && ngx_strncasecmp(ctx->header_name_start, - (u_char *) "Auth-Wait", - sizeof("Auth-Wait") - 1) - == 0) - { - n = ngx_atoi(ctx->header_start, - ctx->header_end - ctx->header_start); - - if (n != NGX_ERROR) { - ctx->sleep = n; - } - - continue; - } - - if (len == sizeof("Auth-Error-Code") - 1 - && ngx_strncasecmp(ctx->header_name_start, - (u_char *) "Auth-Error-Code", - sizeof("Auth-Error-Code") - 1) - == 0) - { - ctx->errcode.len = ctx->header_end - ctx->header_start; - - ctx->errcode.data = ngx_pnalloc(s->connection->pool, - ctx->errcode.len); - if (ctx->errcode.data == NULL) { - ngx_close_connection(ctx->peer.connection); - ngx_destroy_pool(ctx->pool); - ngx_mail_session_internal_server_error(s); - return; - } - - ngx_memcpy(ctx->errcode.data, ctx->header_start, - ctx->errcode.len); - - continue; - } - - /* ignore other headers */ - - continue; - } - - if (rc == NGX_DONE) { - ngx_log_debug0(NGX_LOG_DEBUG_MAIL, s->connection->log, 0, - "mail auth http header done"); - - ngx_close_connection(ctx->peer.connection); - - if (ctx->err.len) { - - ngx_log_error(NGX_LOG_INFO, s->connection->log, 0, - "client login failed: \"%V\"", &ctx->errmsg); - - if (s->protocol == NGX_MAIL_SMTP_PROTOCOL) { - - if (ctx->errcode.len == 0) { - ctx->errcode = ngx_mail_smtp_errcode; - } - - ctx->err.len = ctx->errcode.len + ctx->errmsg.len - + sizeof(" " CRLF) - 1; - - p = ngx_pnalloc(s->connection->pool, ctx->err.len); - if (p == NULL) { - ngx_destroy_pool(ctx->pool); - ngx_mail_session_internal_server_error(s); - return; - } - - ctx->err.data = p; - - p = ngx_cpymem(p, ctx->errcode.data, ctx->errcode.len); - *p++ = ' '; - p = ngx_cpymem(p, ctx->errmsg.data, ctx->errmsg.len); - *p++ = CR; *p = LF; - } - - s->out = ctx->err; - timer = ctx->sleep; - - ngx_destroy_pool(ctx->pool); - - if (timer == 0) { - s->quit = 1; - ngx_mail_send(s->connection->write); - return; - } - - ngx_add_timer(s->connection->read, (ngx_msec_t) (timer * 1000)); - - s->connection->read->handler = ngx_mail_auth_sleep_handler; - - return; - } - - if (s->auth_wait) { - timer = ctx->sleep; - - ngx_destroy_pool(ctx->pool); - - if (timer == 0) { - ngx_mail_auth_http_init(s); - return; - } - - ngx_add_timer(s->connection->read, (ngx_msec_t) (timer * 1000)); - - s->connection->read->handler = ngx_mail_auth_sleep_handler; - - return; - } - - if (ctx->addr.len == 0 || ctx->port.len == 0) { - ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, - "auth http server %V did not send server or port", - ctx->peer.name); - ngx_destroy_pool(ctx->pool); - ngx_mail_session_internal_server_error(s); - return; - } - - if (s->passwd.data == NULL - && s->protocol != NGX_MAIL_SMTP_PROTOCOL) - { - ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, - "auth http server %V did not send password", - ctx->peer.name); - ngx_destroy_pool(ctx->pool); - ngx_mail_session_internal_server_error(s); - return; - } - - peer = ngx_pcalloc(s->connection->pool, sizeof(ngx_addr_t)); - if (peer == NULL) { - ngx_destroy_pool(ctx->pool); - ngx_mail_session_internal_server_error(s); - return; - } - - rc = ngx_parse_addr(s->connection->pool, peer, - ctx->addr.data, ctx->addr.len); - - switch (rc) { - case NGX_OK: - break; - - case NGX_DECLINED: - ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, - "auth http server %V sent invalid server " - "address:\"%V\"", - ctx->peer.name, &ctx->addr); - /* fall through */ - - default: - ngx_destroy_pool(ctx->pool); - ngx_mail_session_internal_server_error(s); - return; - } - - port = ngx_atoi(ctx->port.data, ctx->port.len); - if (port == NGX_ERROR || port < 1 || port > 65535) { - ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, - "auth http server %V sent invalid server " - "port:\"%V\"", - ctx->peer.name, &ctx->port); - ngx_destroy_pool(ctx->pool); - ngx_mail_session_internal_server_error(s); - return; - } - - ngx_inet_set_port(peer->sockaddr, (in_port_t) port); - - len = ctx->addr.len + 1 + ctx->port.len; - - peer->name.len = len; - - peer->name.data = ngx_pnalloc(s->connection->pool, len); - if (peer->name.data == NULL) { - ngx_destroy_pool(ctx->pool); - ngx_mail_session_internal_server_error(s); - return; - } - - len = ctx->addr.len; - - ngx_memcpy(peer->name.data, ctx->addr.data, len); - - peer->name.data[len++] = ':'; - - ngx_memcpy(peer->name.data + len, ctx->port.data, ctx->port.len); - - ngx_destroy_pool(ctx->pool); - ngx_mail_proxy_init(s, peer); - - return; - } - - if (rc == NGX_AGAIN ) { - return; - } - - /* rc == NGX_ERROR */ - - ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, - "auth http server %V sent invalid header in response", - ctx->peer.name); - ngx_close_connection(ctx->peer.connection); - ngx_destroy_pool(ctx->pool); - ngx_mail_session_internal_server_error(s); - - return; - } -} - - -static void -ngx_mail_auth_sleep_handler(ngx_event_t *rev) -{ - ngx_connection_t *c; - ngx_mail_session_t *s; - ngx_mail_core_srv_conf_t *cscf; - - ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, "mail auth sleep handler"); - - c = rev->data; - s = c->data; - - if (rev->timedout) { - - rev->timedout = 0; - - if (s->auth_wait) { - s->auth_wait = 0; - ngx_mail_auth_http_init(s); - return; - } - - cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); - - rev->handler = cscf->protocol->auth_state; - - s->mail_state = 0; - s->auth_method = NGX_MAIL_AUTH_PLAIN; - - c->log->action = "in auth state"; - - ngx_mail_send(c->write); - - if (c->destroyed) { - return; - } - - ngx_add_timer(rev, cscf->timeout); - - if (rev->ready) { - rev->handler(rev); - return; - } - - if (ngx_handle_read_event(rev, 0) != NGX_OK) { - ngx_mail_close_connection(c); - } - - return; - } - - if (rev->active) { - if (ngx_handle_read_event(rev, 0) != NGX_OK) { - ngx_mail_close_connection(c); - } - } -} - - -static ngx_int_t -ngx_mail_auth_http_parse_header_line(ngx_mail_session_t *s, - ngx_mail_auth_http_ctx_t *ctx) -{ - u_char c, ch, *p; - enum { - sw_start = 0, - sw_name, - sw_space_before_value, - sw_value, - sw_space_after_value, - sw_almost_done, - sw_header_almost_done - } state; - - state = ctx->state; - - for (p = ctx->response->pos; p < ctx->response->last; p++) { - ch = *p; - - switch (state) { - - /* first char */ - case sw_start: - - switch (ch) { - case CR: - ctx->header_end = p; - state = sw_header_almost_done; - break; - case LF: - ctx->header_end = p; - goto header_done; - default: - state = sw_name; - ctx->header_name_start = p; - - c = (u_char) (ch | 0x20); - if (c >= 'a' && c <= 'z') { - break; - } - - if (ch >= '0' && ch <= '9') { - break; - } - - return NGX_ERROR; - } - break; - - /* header name */ - case sw_name: - c = (u_char) (ch | 0x20); - if (c >= 'a' && c <= 'z') { - break; - } - - if (ch == ':') { - ctx->header_name_end = p; - state = sw_space_before_value; - break; - } - - if (ch == '-') { - break; - } - - if (ch >= '0' && ch <= '9') { - break; - } - - if (ch == CR) { - ctx->header_name_end = p; - ctx->header_start = p; - ctx->header_end = p; - state = sw_almost_done; - break; - } - - if (ch == LF) { - ctx->header_name_end = p; - ctx->header_start = p; - ctx->header_end = p; - goto done; - } - - return NGX_ERROR; - - /* space* before header value */ - case sw_space_before_value: - switch (ch) { - case ' ': - break; - case CR: - ctx->header_start = p; - ctx->header_end = p; - state = sw_almost_done; - break; - case LF: - ctx->header_start = p; - ctx->header_end = p; - goto done; - default: - ctx->header_start = p; - state = sw_value; - break; - } - break; - - /* header value */ - case sw_value: - switch (ch) { - case ' ': - ctx->header_end = p; - state = sw_space_after_value; - break; - case CR: - ctx->header_end = p; - state = sw_almost_done; - break; - case LF: - ctx->header_end = p; - goto done; - } - break; - - /* space* before end of header line */ - case sw_space_after_value: - switch (ch) { - case ' ': - break; - case CR: - state = sw_almost_done; - break; - case LF: - goto done; - default: - state = sw_value; - break; - } - break; - - /* end of header line */ - case sw_almost_done: - switch (ch) { - case LF: - goto done; - default: - return NGX_ERROR; - } - - /* end of header */ - case sw_header_almost_done: - switch (ch) { - case LF: - goto header_done; - default: - return NGX_ERROR; - } - } - } - - ctx->response->pos = p; - ctx->state = state; - - return NGX_AGAIN; - -done: - - ctx->response->pos = p + 1; - ctx->state = sw_start; - - return NGX_OK; - -header_done: - - ctx->response->pos = p + 1; - ctx->state = sw_start; - - return NGX_DONE; -} - - -static void -ngx_mail_auth_http_block_read(ngx_event_t *rev) -{ - ngx_connection_t *c; - ngx_mail_session_t *s; - ngx_mail_auth_http_ctx_t *ctx; - - ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, - "mail auth http block read"); - - if (ngx_handle_read_event(rev, 0) != NGX_OK) { - c = rev->data; - s = c->data; - - ctx = ngx_mail_get_module_ctx(s, ngx_mail_auth_http_module); - - ngx_close_connection(ctx->peer.connection); - ngx_destroy_pool(ctx->pool); - ngx_mail_session_internal_server_error(s); - } -} - - -static void -ngx_mail_auth_http_dummy_handler(ngx_event_t *ev) -{ - ngx_log_debug0(NGX_LOG_DEBUG_MAIL, ev->log, 0, - "mail auth http dummy handler"); -} - - -static ngx_buf_t * -ngx_mail_auth_http_create_request(ngx_mail_session_t *s, ngx_pool_t *pool, - ngx_mail_auth_http_conf_t *ahcf) -{ - size_t len; - ngx_buf_t *b; - ngx_str_t login, passwd; -#if (NGX_MAIL_SSL) - ngx_str_t verify, subject, issuer, serial, fingerprint, - raw_cert, cert; - ngx_connection_t *c; - ngx_mail_ssl_conf_t *sslcf; -#endif - ngx_mail_core_srv_conf_t *cscf; - - if (ngx_mail_auth_http_escape(pool, &s->login, &login) != NGX_OK) { - return NULL; - } - - if (ngx_mail_auth_http_escape(pool, &s->passwd, &passwd) != NGX_OK) { - return NULL; - } - -#if (NGX_MAIL_SSL) - - c = s->connection; - sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); - - if (c->ssl && sslcf->verify) { - - /* certificate details */ - - if (ngx_ssl_get_client_verify(c, pool, &verify) != NGX_OK) { - return NULL; - } - - if (ngx_ssl_get_subject_dn(c, pool, &subject) != NGX_OK) { - return NULL; - } - - if (ngx_ssl_get_issuer_dn(c, pool, &issuer) != NGX_OK) { - return NULL; - } - - if (ngx_ssl_get_serial_number(c, pool, &serial) != NGX_OK) { - return NULL; - } - - if (ngx_ssl_get_fingerprint(c, pool, &fingerprint) != NGX_OK) { - return NULL; - } - - if (ahcf->pass_client_cert) { - - /* certificate itself, if configured */ - - if (ngx_ssl_get_raw_certificate(c, pool, &raw_cert) != NGX_OK) { - return NULL; - } - - if (ngx_mail_auth_http_escape(pool, &raw_cert, &cert) != NGX_OK) { - return NULL; - } - - } else { - ngx_str_null(&cert); - } - - } else { - ngx_str_null(&verify); - ngx_str_null(&subject); - ngx_str_null(&issuer); - ngx_str_null(&serial); - ngx_str_null(&fingerprint); - ngx_str_null(&cert); - } - -#endif - - cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); - - len = sizeof("GET ") - 1 + ahcf->uri.len + sizeof(" HTTP/1.0" CRLF) - 1 - + sizeof("Host: ") - 1 + ahcf->host_header.len + sizeof(CRLF) - 1 - + sizeof("Auth-Method: ") - 1 - + ngx_mail_auth_http_method[s->auth_method].len - + sizeof(CRLF) - 1 - + sizeof("Auth-User: ") - 1 + login.len + sizeof(CRLF) - 1 - + sizeof("Auth-Pass: ") - 1 + passwd.len + sizeof(CRLF) - 1 - + sizeof("Auth-Salt: ") - 1 + s->salt.len - + sizeof("Auth-Protocol: ") - 1 + cscf->protocol->name.len - + sizeof(CRLF) - 1 - + sizeof("Auth-Login-Attempt: ") - 1 + NGX_INT_T_LEN - + sizeof(CRLF) - 1 - + sizeof("Client-IP: ") - 1 + s->connection->addr_text.len - + sizeof(CRLF) - 1 - + sizeof("Client-Host: ") - 1 + s->host.len + sizeof(CRLF) - 1 - + sizeof("Auth-SMTP-Helo: ") - 1 + s->smtp_helo.len + sizeof(CRLF) - 1 - + sizeof("Auth-SMTP-From: ") - 1 + s->smtp_from.len + sizeof(CRLF) - 1 - + sizeof("Auth-SMTP-To: ") - 1 + s->smtp_to.len + sizeof(CRLF) - 1 -#if (NGX_MAIL_SSL) - + sizeof("Auth-SSL: on" CRLF) - 1 - + sizeof("Auth-SSL-Verify: ") - 1 + verify.len + sizeof(CRLF) - 1 - + sizeof("Auth-SSL-Subject: ") - 1 + subject.len + sizeof(CRLF) - 1 - + sizeof("Auth-SSL-Issuer: ") - 1 + issuer.len + sizeof(CRLF) - 1 - + sizeof("Auth-SSL-Serial: ") - 1 + serial.len + sizeof(CRLF) - 1 - + sizeof("Auth-SSL-Fingerprint: ") - 1 + fingerprint.len - + sizeof(CRLF) - 1 - + sizeof("Auth-SSL-Cert: ") - 1 + cert.len + sizeof(CRLF) - 1 -#endif - + ahcf->header.len - + sizeof(CRLF) - 1; - - b = ngx_create_temp_buf(pool, len); - if (b == NULL) { - return NULL; - } - - b->last = ngx_cpymem(b->last, "GET ", sizeof("GET ") - 1); - b->last = ngx_copy(b->last, ahcf->uri.data, ahcf->uri.len); - b->last = ngx_cpymem(b->last, " HTTP/1.0" CRLF, - sizeof(" HTTP/1.0" CRLF) - 1); - - b->last = ngx_cpymem(b->last, "Host: ", sizeof("Host: ") - 1); - b->last = ngx_copy(b->last, ahcf->host_header.data, - ahcf->host_header.len); - *b->last++ = CR; *b->last++ = LF; - - b->last = ngx_cpymem(b->last, "Auth-Method: ", - sizeof("Auth-Method: ") - 1); - b->last = ngx_cpymem(b->last, - ngx_mail_auth_http_method[s->auth_method].data, - ngx_mail_auth_http_method[s->auth_method].len); - *b->last++ = CR; *b->last++ = LF; - - b->last = ngx_cpymem(b->last, "Auth-User: ", sizeof("Auth-User: ") - 1); - b->last = ngx_copy(b->last, login.data, login.len); - *b->last++ = CR; *b->last++ = LF; - - b->last = ngx_cpymem(b->last, "Auth-Pass: ", sizeof("Auth-Pass: ") - 1); - b->last = ngx_copy(b->last, passwd.data, passwd.len); - *b->last++ = CR; *b->last++ = LF; - - if (s->auth_method != NGX_MAIL_AUTH_PLAIN && s->salt.len) { - b->last = ngx_cpymem(b->last, "Auth-Salt: ", sizeof("Auth-Salt: ") - 1); - b->last = ngx_copy(b->last, s->salt.data, s->salt.len); - - s->passwd.data = NULL; - } - - b->last = ngx_cpymem(b->last, "Auth-Protocol: ", - sizeof("Auth-Protocol: ") - 1); - b->last = ngx_cpymem(b->last, cscf->protocol->name.data, - cscf->protocol->name.len); - *b->last++ = CR; *b->last++ = LF; - - b->last = ngx_sprintf(b->last, "Auth-Login-Attempt: %ui" CRLF, - s->login_attempt); - - b->last = ngx_cpymem(b->last, "Client-IP: ", sizeof("Client-IP: ") - 1); - b->last = ngx_copy(b->last, s->connection->addr_text.data, - s->connection->addr_text.len); - *b->last++ = CR; *b->last++ = LF; - - if (s->host.len) { - b->last = ngx_cpymem(b->last, "Client-Host: ", - sizeof("Client-Host: ") - 1); - b->last = ngx_copy(b->last, s->host.data, s->host.len); - *b->last++ = CR; *b->last++ = LF; - } - - if (s->auth_method == NGX_MAIL_AUTH_NONE) { - - /* HELO, MAIL FROM, and RCPT TO can't contain CRLF, no need to escape */ - - b->last = ngx_cpymem(b->last, "Auth-SMTP-Helo: ", - sizeof("Auth-SMTP-Helo: ") - 1); - b->last = ngx_copy(b->last, s->smtp_helo.data, s->smtp_helo.len); - *b->last++ = CR; *b->last++ = LF; - - b->last = ngx_cpymem(b->last, "Auth-SMTP-From: ", - sizeof("Auth-SMTP-From: ") - 1); - b->last = ngx_copy(b->last, s->smtp_from.data, s->smtp_from.len); - *b->last++ = CR; *b->last++ = LF; - - b->last = ngx_cpymem(b->last, "Auth-SMTP-To: ", - sizeof("Auth-SMTP-To: ") - 1); - b->last = ngx_copy(b->last, s->smtp_to.data, s->smtp_to.len); - *b->last++ = CR; *b->last++ = LF; - - } - -#if (NGX_MAIL_SSL) - - if (c->ssl) { - b->last = ngx_cpymem(b->last, "Auth-SSL: on" CRLF, - sizeof("Auth-SSL: on" CRLF) - 1); - - if (verify.len) { - b->last = ngx_cpymem(b->last, "Auth-SSL-Verify: ", - sizeof("Auth-SSL-Verify: ") - 1); - b->last = ngx_copy(b->last, verify.data, verify.len); - *b->last++ = CR; *b->last++ = LF; - } - - if (subject.len) { - b->last = ngx_cpymem(b->last, "Auth-SSL-Subject: ", - sizeof("Auth-SSL-Subject: ") - 1); - b->last = ngx_copy(b->last, subject.data, subject.len); - *b->last++ = CR; *b->last++ = LF; - } - - if (issuer.len) { - b->last = ngx_cpymem(b->last, "Auth-SSL-Issuer: ", - sizeof("Auth-SSL-Issuer: ") - 1); - b->last = ngx_copy(b->last, issuer.data, issuer.len); - *b->last++ = CR; *b->last++ = LF; - } - - if (serial.len) { - b->last = ngx_cpymem(b->last, "Auth-SSL-Serial: ", - sizeof("Auth-SSL-Serial: ") - 1); - b->last = ngx_copy(b->last, serial.data, serial.len); - *b->last++ = CR; *b->last++ = LF; - } - - if (fingerprint.len) { - b->last = ngx_cpymem(b->last, "Auth-SSL-Fingerprint: ", - sizeof("Auth-SSL-Fingerprint: ") - 1); - b->last = ngx_copy(b->last, fingerprint.data, fingerprint.len); - *b->last++ = CR; *b->last++ = LF; - } - - if (cert.len) { - b->last = ngx_cpymem(b->last, "Auth-SSL-Cert: ", - sizeof("Auth-SSL-Cert: ") - 1); - b->last = ngx_copy(b->last, cert.data, cert.len); - *b->last++ = CR; *b->last++ = LF; - } - } - -#endif - - if (ahcf->header.len) { - b->last = ngx_copy(b->last, ahcf->header.data, ahcf->header.len); - } - - /* add "\r\n" at the header end */ - *b->last++ = CR; *b->last++ = LF; - -#if (NGX_DEBUG_MAIL_PASSWD) - ngx_log_debug2(NGX_LOG_DEBUG_MAIL, s->connection->log, 0, - "mail auth http header:%N\"%*s\"", - (size_t) (b->last - b->pos), b->pos); -#endif - - return b; -} - - -static ngx_int_t -ngx_mail_auth_http_escape(ngx_pool_t *pool, ngx_str_t *text, ngx_str_t *escaped) -{ - u_char *p; - uintptr_t n; - - n = ngx_escape_uri(NULL, text->data, text->len, NGX_ESCAPE_MAIL_AUTH); - - if (n == 0) { - *escaped = *text; - return NGX_OK; - } - - escaped->len = text->len + n * 2; - - p = ngx_pnalloc(pool, escaped->len); - if (p == NULL) { - return NGX_ERROR; - } - - (void) ngx_escape_uri(p, text->data, text->len, NGX_ESCAPE_MAIL_AUTH); - - escaped->data = p; - - return NGX_OK; -} - - -static void * -ngx_mail_auth_http_create_conf(ngx_conf_t *cf) -{ - ngx_mail_auth_http_conf_t *ahcf; - - ahcf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_auth_http_conf_t)); - if (ahcf == NULL) { - return NULL; - } - - ahcf->timeout = NGX_CONF_UNSET_MSEC; - ahcf->pass_client_cert = NGX_CONF_UNSET; - - ahcf->file = cf->conf_file->file.name.data; - ahcf->line = cf->conf_file->line; - - return ahcf; -} - - -static char * -ngx_mail_auth_http_merge_conf(ngx_conf_t *cf, void *parent, void *child) -{ - ngx_mail_auth_http_conf_t *prev = parent; - ngx_mail_auth_http_conf_t *conf = child; - - u_char *p; - size_t len; - ngx_uint_t i; - ngx_table_elt_t *header; - - if (conf->peer == NULL) { - conf->peer = prev->peer; - conf->host_header = prev->host_header; - conf->uri = prev->uri; - - if (conf->peer == NULL) { - ngx_log_error(NGX_LOG_EMERG, cf->log, 0, - "no \"auth_http\" is defined for server in %s:%ui", - conf->file, conf->line); - - return NGX_CONF_ERROR; - } - } - - ngx_conf_merge_msec_value(conf->timeout, prev->timeout, 60000); - - ngx_conf_merge_value(conf->pass_client_cert, prev->pass_client_cert, 0); - - if (conf->headers == NULL) { - conf->headers = prev->headers; - conf->header = prev->header; - } - - if (conf->headers && conf->header.len == 0) { - len = 0; - header = conf->headers->elts; - for (i = 0; i < conf->headers->nelts; i++) { - len += header[i].key.len + 2 + header[i].value.len + 2; - } - - p = ngx_pnalloc(cf->pool, len); - if (p == NULL) { - return NGX_CONF_ERROR; - } - - conf->header.len = len; - conf->header.data = p; - - for (i = 0; i < conf->headers->nelts; i++) { - p = ngx_cpymem(p, header[i].key.data, header[i].key.len); - *p++ = ':'; *p++ = ' '; - p = ngx_cpymem(p, header[i].value.data, header[i].value.len); - *p++ = CR; *p++ = LF; - } - } - - return NGX_CONF_OK; -} - - -static char * -ngx_mail_auth_http(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) -{ - ngx_mail_auth_http_conf_t *ahcf = conf; - - ngx_str_t *value; - ngx_url_t u; - - value = cf->args->elts; - - ngx_memzero(&u, sizeof(ngx_url_t)); - - u.url = value[1]; - u.default_port = 80; - u.uri_part = 1; - - if (ngx_strncmp(u.url.data, "http://", 7) == 0) { - u.url.len -= 7; - u.url.data += 7; - } - - if (ngx_parse_url(cf->pool, &u) != NGX_OK) { - if (u.err) { - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "%s in auth_http \"%V\"", u.err, &u.url); - } - - return NGX_CONF_ERROR; - } - - ahcf->peer = u.addrs; - - if (u.family != AF_UNIX) { - ahcf->host_header = u.host; - - } else { - ngx_str_set(&ahcf->host_header, "localhost"); - } - - ahcf->uri = u.uri; - - if (ahcf->uri.len == 0) { - ngx_str_set(&ahcf->uri, "/"); - } - - return NGX_CONF_OK; -} - - -static char * -ngx_mail_auth_http_header(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) -{ - ngx_mail_auth_http_conf_t *ahcf = conf; - - ngx_str_t *value; - ngx_table_elt_t *header; - - if (ahcf->headers == NULL) { - ahcf->headers = ngx_array_create(cf->pool, 1, sizeof(ngx_table_elt_t)); - if (ahcf->headers == NULL) { - return NGX_CONF_ERROR; - } - } - - header = ngx_array_push(ahcf->headers); - if (header == NULL) { - return NGX_CONF_ERROR; - } - - value = cf->args->elts; - - header->key = value[1]; - header->value = value[2]; - - return NGX_CONF_OK; -} diff --git a/nginx/src/mail/ngx_mail_core_module.c b/nginx/src/mail/ngx_mail_core_module.c deleted file mode 100644 index 276b8ee..0000000 --- a/nginx/src/mail/ngx_mail_core_module.c +++ /dev/null @@ -1,678 +0,0 @@ - -/* - * Copyright (C) Igor Sysoev - * Copyright (C) Nginx, Inc. - */ - - -#include <ngx_config.h> -#include <ngx_core.h> -#include <ngx_event.h> -#include <ngx_mail.h> - - -static void *ngx_mail_core_create_main_conf(ngx_conf_t *cf); -static void *ngx_mail_core_create_srv_conf(ngx_conf_t *cf); -static char *ngx_mail_core_merge_srv_conf(ngx_conf_t *cf, void *parent, - void *child); -static char *ngx_mail_core_server(ngx_conf_t *cf, ngx_command_t *cmd, - void *conf); -static char *ngx_mail_core_listen(ngx_conf_t *cf, ngx_command_t *cmd, - void *conf); -static char *ngx_mail_core_protocol(ngx_conf_t *cf, ngx_command_t *cmd, - void *conf); -static char *ngx_mail_core_error_log(ngx_conf_t *cf, ngx_command_t *cmd, - void *conf); -static char *ngx_mail_core_resolver(ngx_conf_t *cf, ngx_command_t *cmd, - void *conf); - - -static ngx_command_t ngx_mail_core_commands[] = { - - { ngx_string("server"), - NGX_MAIL_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_NOARGS, - ngx_mail_core_server, - 0, - 0, - NULL }, - - { ngx_string("listen"), - NGX_MAIL_SRV_CONF|NGX_CONF_1MORE, - ngx_mail_core_listen, - NGX_MAIL_SRV_CONF_OFFSET, - 0, - NULL }, - - { ngx_string("protocol"), - NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, - ngx_mail_core_protocol, - NGX_MAIL_SRV_CONF_OFFSET, - 0, - NULL }, - - { ngx_string("timeout"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, - ngx_conf_set_msec_slot, - NGX_MAIL_SRV_CONF_OFFSET, - offsetof(ngx_mail_core_srv_conf_t, timeout), - NULL }, - - { ngx_string("server_name"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, - ngx_conf_set_str_slot, - NGX_MAIL_SRV_CONF_OFFSET, - offsetof(ngx_mail_core_srv_conf_t, server_name), - NULL }, - - { ngx_string("error_log"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_1MORE, - ngx_mail_core_error_log, - NGX_MAIL_SRV_CONF_OFFSET, - 0, - NULL }, - - { ngx_string("resolver"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_1MORE, - ngx_mail_core_resolver, - NGX_MAIL_SRV_CONF_OFFSET, - 0, - NULL }, - - { ngx_string("resolver_timeout"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, - ngx_conf_set_msec_slot, - NGX_MAIL_SRV_CONF_OFFSET, - offsetof(ngx_mail_core_srv_conf_t, resolver_timeout), - NULL }, - - ngx_null_command -}; - - -static ngx_mail_module_t ngx_mail_core_module_ctx = { - NULL, /* protocol */ - - ngx_mail_core_create_main_conf, /* create main configuration */ - NULL, /* init main configuration */ - - ngx_mail_core_create_srv_conf, /* create server configuration */ - ngx_mail_core_merge_srv_conf /* merge server configuration */ -}; - - -ngx_module_t ngx_mail_core_module = { - NGX_MODULE_V1, - &ngx_mail_core_module_ctx, /* module context */ - ngx_mail_core_commands, /* module directives */ - NGX_MAIL_MODULE, /* module type */ - NULL, /* init master */ - NULL, /* init module */ - NULL, /* init process */ - NULL, /* init thread */ - NULL, /* exit thread */ - NULL, /* exit process */ - NULL, /* exit master */ - NGX_MODULE_V1_PADDING -}; - - -static void * -ngx_mail_core_create_main_conf(ngx_conf_t *cf) -{ - ngx_mail_core_main_conf_t *cmcf; - - cmcf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_core_main_conf_t)); - if (cmcf == NULL) { - return NULL; - } - - if (ngx_array_init(&cmcf->servers, cf->pool, 4, - sizeof(ngx_mail_core_srv_conf_t *)) - != NGX_OK) - { - return NULL; - } - - if (ngx_array_init(&cmcf->listen, cf->pool, 4, sizeof(ngx_mail_listen_t)) - != NGX_OK) - { - return NULL; - } - - return cmcf; -} - - -static void * -ngx_mail_core_create_srv_conf(ngx_conf_t *cf) -{ - ngx_mail_core_srv_conf_t *cscf; - - cscf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_core_srv_conf_t)); - if (cscf == NULL) { - return NULL; - } - - /* - * set by ngx_pcalloc(): - * - * cscf->protocol = NULL; - * cscf->error_log = NULL; - */ - - cscf->timeout = NGX_CONF_UNSET_MSEC; - cscf->resolver_timeout = NGX_CONF_UNSET_MSEC; - - cscf->resolver = NGX_CONF_UNSET_PTR; - - cscf->file_name = cf->conf_file->file.name.data; - cscf->line = cf->conf_file->line; - - return cscf; -} - - -static char * -ngx_mail_core_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) -{ - ngx_mail_core_srv_conf_t *prev = parent; - ngx_mail_core_srv_conf_t *conf = child; - - ngx_conf_merge_msec_value(conf->timeout, prev->timeout, 60000); - ngx_conf_merge_msec_value(conf->resolver_timeout, prev->resolver_timeout, - 30000); - - - ngx_conf_merge_str_value(conf->server_name, prev->server_name, ""); - - if (conf->server_name.len == 0) { - conf->server_name = cf->cycle->hostname; - } - - if (conf->protocol == NULL) { - ngx_log_error(NGX_LOG_EMERG, cf->log, 0, - "unknown mail protocol for server in %s:%ui", - conf->file_name, conf->line); - return NGX_CONF_ERROR; - } - - if (conf->error_log == NULL) { - if (prev->error_log) { - conf->error_log = prev->error_log; - } else { - conf->error_log = &cf->cycle->new_log; - } - } - - ngx_conf_merge_ptr_value(conf->resolver, prev->resolver, NULL); - - return NGX_CONF_OK; -} - - -static char * -ngx_mail_core_server(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) -{ - char *rv; - void *mconf; - ngx_uint_t m; - ngx_conf_t pcf; - ngx_mail_module_t *module; - ngx_mail_conf_ctx_t *ctx, *mail_ctx; - ngx_mail_core_srv_conf_t *cscf, **cscfp; - ngx_mail_core_main_conf_t *cmcf; - - ctx = ngx_pcalloc(cf->pool, sizeof(ngx_mail_conf_ctx_t)); - if (ctx == NULL) { - return NGX_CONF_ERROR; - } - - mail_ctx = cf->ctx; - ctx->main_conf = mail_ctx->main_conf; - - /* the server{}'s srv_conf */ - - ctx->srv_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_mail_max_module); - if (ctx->srv_conf == NULL) { - return NGX_CONF_ERROR; - } - - for (m = 0; cf->cycle->modules[m]; m++) { - if (cf->cycle->modules[m]->type != NGX_MAIL_MODULE) { - continue; - } - - module = cf->cycle->modules[m]->ctx; - - if (module->create_srv_conf) { - mconf = module->create_srv_conf(cf); - if (mconf == NULL) { - return NGX_CONF_ERROR; - } - - ctx->srv_conf[cf->cycle->modules[m]->ctx_index] = mconf; - } - } - - /* the server configuration context */ - - cscf = ctx->srv_conf[ngx_mail_core_module.ctx_index]; - cscf->ctx = ctx; - - cmcf = ctx->main_conf[ngx_mail_core_module.ctx_index]; - - cscfp = ngx_array_push(&cmcf->servers); - if (cscfp == NULL) { - return NGX_CONF_ERROR; - } - - *cscfp = cscf; - - - /* parse inside server{} */ - - pcf = *cf; - cf->ctx = ctx; - cf->cmd_type = NGX_MAIL_SRV_CONF; - - rv = ngx_conf_parse(cf, NULL); - - *cf = pcf; - - if (rv == NGX_CONF_OK && !cscf->listen) { - ngx_log_error(NGX_LOG_EMERG, cf->log, 0, - "no \"listen\" is defined for server in %s:%ui", - cscf->file_name, cscf->line); - return NGX_CONF_ERROR; - } - - return rv; -} - - -static char * -ngx_mail_core_listen(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) -{ - ngx_mail_core_srv_conf_t *cscf = conf; - - ngx_str_t *value, size; - ngx_url_t u; - ngx_uint_t i, m; - ngx_mail_listen_t *ls; - ngx_mail_module_t *module; - ngx_mail_core_main_conf_t *cmcf; - - cscf->listen = 1; - - value = cf->args->elts; - - ngx_memzero(&u, sizeof(ngx_url_t)); - - u.url = value[1]; - u.listen = 1; - - if (ngx_parse_url(cf->pool, &u) != NGX_OK) { - if (u.err) { - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "%s in \"%V\" of the \"listen\" directive", - u.err, &u.url); - } - - return NGX_CONF_ERROR; - } - - cmcf = ngx_mail_conf_get_module_main_conf(cf, ngx_mail_core_module); - - ls = cmcf->listen.elts; - - for (i = 0; i < cmcf->listen.nelts; i++) { - - if (ngx_cmp_sockaddr(&ls[i].sockaddr.sockaddr, ls[i].socklen, - (struct sockaddr *) &u.sockaddr, u.socklen, 1) - != NGX_OK) - { - continue; - } - - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "duplicate \"%V\" address and port pair", &u.url); - return NGX_CONF_ERROR; - } - - ls = ngx_array_push(&cmcf->listen); - if (ls == NULL) { - return NGX_CONF_ERROR; - } - - ngx_memzero(ls, sizeof(ngx_mail_listen_t)); - - ngx_memcpy(&ls->sockaddr.sockaddr, &u.sockaddr, u.socklen); - - ls->socklen = u.socklen; - ls->backlog = NGX_LISTEN_BACKLOG; - ls->rcvbuf = -1; - ls->sndbuf = -1; - ls->wildcard = u.wildcard; - ls->ctx = cf->ctx; - -#if (NGX_HAVE_INET6) - ls->ipv6only = 1; -#endif - - if (cscf->protocol == NULL) { - for (m = 0; cf->cycle->modules[m]; m++) { - if (cf->cycle->modules[m]->type != NGX_MAIL_MODULE) { - continue; - } - - module = cf->cycle->modules[m]->ctx; - - if (module->protocol == NULL) { - continue; - } - - for (i = 0; module->protocol->port[i]; i++) { - if (module->protocol->port[i] == u.port) { - cscf->protocol = module->protocol; - break; - } - } - } - } - - for (i = 2; i < cf->args->nelts; i++) { - - if (ngx_strcmp(value[i].data, "bind") == 0) { - ls->bind = 1; - continue; - } - - if (ngx_strncmp(value[i].data, "backlog=", 8) == 0) { - ls->backlog = ngx_atoi(value[i].data + 8, value[i].len - 8); - ls->bind = 1; - - if (ls->backlog == NGX_ERROR || ls->backlog == 0) { - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "invalid backlog \"%V\"", &value[i]); - return NGX_CONF_ERROR; - } - - continue; - } - - if (ngx_strncmp(value[i].data, "rcvbuf=", 7) == 0) { - size.len = value[i].len - 7; - size.data = value[i].data + 7; - - ls->rcvbuf = ngx_parse_size(&size); - ls->bind = 1; - - if (ls->rcvbuf == NGX_ERROR) { - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "invalid rcvbuf \"%V\"", &value[i]); - return NGX_CONF_ERROR; - } - - continue; - } - - if (ngx_strncmp(value[i].data, "sndbuf=", 7) == 0) { - size.len = value[i].len - 7; - size.data = value[i].data + 7; - - ls->sndbuf = ngx_parse_size(&size); - ls->bind = 1; - - if (ls->sndbuf == NGX_ERROR) { - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "invalid sndbuf \"%V\"", &value[i]); - return NGX_CONF_ERROR; - } - - continue; - } - - if (ngx_strncmp(value[i].data, "ipv6only=o", 10) == 0) { -#if (NGX_HAVE_INET6 && defined IPV6_V6ONLY) - size_t len; - u_char buf[NGX_SOCKADDR_STRLEN]; - - if (ls->sockaddr.sockaddr.sa_family == AF_INET6) { - - if (ngx_strcmp(&value[i].data[10], "n") == 0) { - ls->ipv6only = 1; - - } else if (ngx_strcmp(&value[i].data[10], "ff") == 0) { - ls->ipv6only = 0; - - } else { - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "invalid ipv6only flags \"%s\"", - &value[i].data[9]); - return NGX_CONF_ERROR; - } - - ls->bind = 1; - - } else { - len = ngx_sock_ntop(&ls->sockaddr.sockaddr, ls->socklen, buf, - NGX_SOCKADDR_STRLEN, 1); - - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "ipv6only is not supported " - "on addr \"%*s\", ignored", len, buf); - } - - continue; -#else - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "bind ipv6only is not supported " - "on this platform"); - return NGX_CONF_ERROR; -#endif - } - - if (ngx_strcmp(value[i].data, "ssl") == 0) { -#if (NGX_MAIL_SSL) - ls->ssl = 1; - continue; -#else - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "the \"ssl\" parameter requires " - "ngx_mail_ssl_module"); - return NGX_CONF_ERROR; -#endif - } - - if (ngx_strncmp(value[i].data, "so_keepalive=", 13) == 0) { - - if (ngx_strcmp(&value[i].data[13], "on") == 0) { - ls->so_keepalive = 1; - - } else if (ngx_strcmp(&value[i].data[13], "off") == 0) { - ls->so_keepalive = 2; - - } else { - -#if (NGX_HAVE_KEEPALIVE_TUNABLE) - u_char *p, *end; - ngx_str_t s; - - end = value[i].data + value[i].len; - s.data = value[i].data + 13; - - p = ngx_strlchr(s.data, end, ':'); - if (p == NULL) { - p = end; - } - - if (p > s.data) { - s.len = p - s.data; - - ls->tcp_keepidle = ngx_parse_time(&s, 1); - if (ls->tcp_keepidle == (time_t) NGX_ERROR) { - goto invalid_so_keepalive; - } - } - - s.data = (p < end) ? (p + 1) : end; - - p = ngx_strlchr(s.data, end, ':'); - if (p == NULL) { - p = end; - } - - if (p > s.data) { - s.len = p - s.data; - - ls->tcp_keepintvl = ngx_parse_time(&s, 1); - if (ls->tcp_keepintvl == (time_t) NGX_ERROR) { - goto invalid_so_keepalive; - } - } - - s.data = (p < end) ? (p + 1) : end; - - if (s.data < end) { - s.len = end - s.data; - - ls->tcp_keepcnt = ngx_atoi(s.data, s.len); - if (ls->tcp_keepcnt == NGX_ERROR) { - goto invalid_so_keepalive; - } - } - - if (ls->tcp_keepidle == 0 && ls->tcp_keepintvl == 0 - && ls->tcp_keepcnt == 0) - { - goto invalid_so_keepalive; - } - - ls->so_keepalive = 1; - -#else - - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "the \"so_keepalive\" parameter accepts " - "only \"on\" or \"off\" on this platform"); - return NGX_CONF_ERROR; - -#endif - } - - ls->bind = 1; - - continue; - -#if (NGX_HAVE_KEEPALIVE_TUNABLE) - invalid_so_keepalive: - - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "invalid so_keepalive value: \"%s\"", - &value[i].data[13]); - return NGX_CONF_ERROR; -#endif - } - - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "the invalid \"%V\" parameter", &value[i]); - return NGX_CONF_ERROR; - } - - return NGX_CONF_OK; -} - - -static char * -ngx_mail_core_protocol(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) -{ - ngx_mail_core_srv_conf_t *cscf = conf; - - ngx_str_t *value; - ngx_uint_t m; - ngx_mail_module_t *module; - - value = cf->args->elts; - - for (m = 0; cf->cycle->modules[m]; m++) { - if (cf->cycle->modules[m]->type != NGX_MAIL_MODULE) { - continue; - } - - module = cf->cycle->modules[m]->ctx; - - if (module->protocol - && ngx_strcmp(module->protocol->name.data, value[1].data) == 0) - { - cscf->protocol = module->protocol; - - return NGX_CONF_OK; - } - } - - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "unknown protocol \"%V\"", &value[1]); - return NGX_CONF_ERROR; -} - - -static char * -ngx_mail_core_error_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) -{ - ngx_mail_core_srv_conf_t *cscf = conf; - - return ngx_log_set_log(cf, &cscf->error_log); -} - - -static char * -ngx_mail_core_resolver(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) -{ - ngx_mail_core_srv_conf_t *cscf = conf; - - ngx_str_t *value; - - value = cf->args->elts; - - if (cscf->resolver != NGX_CONF_UNSET_PTR) { - return "is duplicate"; - } - - if (ngx_strcmp(value[1].data, "off") == 0) { - cscf->resolver = NULL; - return NGX_CONF_OK; - } - - cscf->resolver = ngx_resolver_create(cf, &value[1], cf->args->nelts - 1); - if (cscf->resolver == NULL) { - return NGX_CONF_ERROR; - } - - return NGX_CONF_OK; -} - - -char * -ngx_mail_capabilities(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) -{ - char *p = conf; - - ngx_str_t *c, *value; - ngx_uint_t i; - ngx_array_t *a; - - a = (ngx_array_t *) (p + cmd->offset); - - value = cf->args->elts; - - for (i = 1; i < cf->args->nelts; i++) { - c = ngx_array_push(a); - if (c == NULL) { - return NGX_CONF_ERROR; - } - - *c = value[i]; - } - - return NGX_CONF_OK; -} diff --git a/nginx/src/mail/ngx_mail_handler.c b/nginx/src/mail/ngx_mail_handler.c deleted file mode 100644 index bc3e6b9..0000000 --- a/nginx/src/mail/ngx_mail_handler.c +++ /dev/null @@ -1,900 +0,0 @@ - -/* - * Copyright (C) Igor Sysoev - * Copyright (C) Nginx, Inc. - */ - - -#include <ngx_config.h> -#include <ngx_core.h> -#include <ngx_event.h> -#include <ngx_mail.h> - - -static void ngx_mail_init_session(ngx_connection_t *c); - -#if (NGX_MAIL_SSL) -static void ngx_mail_ssl_init_connection(ngx_ssl_t *ssl, ngx_connection_t *c); -static void ngx_mail_ssl_handshake_handler(ngx_connection_t *c); -static ngx_int_t ngx_mail_verify_cert(ngx_mail_session_t *s, - ngx_connection_t *c); -#endif - - -void -ngx_mail_init_connection(ngx_connection_t *c) -{ - size_t len; - ngx_uint_t i; - ngx_mail_port_t *port; - struct sockaddr *sa; - struct sockaddr_in *sin; - ngx_mail_log_ctx_t *ctx; - ngx_mail_in_addr_t *addr; - ngx_mail_session_t *s; - ngx_mail_addr_conf_t *addr_conf; - ngx_mail_core_srv_conf_t *cscf; - u_char text[NGX_SOCKADDR_STRLEN]; -#if (NGX_HAVE_INET6) - struct sockaddr_in6 *sin6; - ngx_mail_in6_addr_t *addr6; -#endif - - - /* find the server configuration for the address:port */ - - port = c->listening->servers; - - if (port->naddrs > 1) { - - /* - * There are several addresses on this port and one of them - * is the "*:port" wildcard so getsockname() is needed to determine - * the server address. - * - * AcceptEx() already gave this address. - */ - - if (ngx_connection_local_sockaddr(c, NULL, 0) != NGX_OK) { - ngx_mail_close_connection(c); - return; - } - - sa = c->local_sockaddr; - - switch (sa->sa_family) { - -#if (NGX_HAVE_INET6) - case AF_INET6: - sin6 = (struct sockaddr_in6 *) sa; - - addr6 = port->addrs; - - /* the last address is "*" */ - - for (i = 0; i < port->naddrs - 1; i++) { - if (ngx_memcmp(&addr6[i].addr6, &sin6->sin6_addr, 16) == 0) { - break; - } - } - - addr_conf = &addr6[i].conf; - - break; -#endif - - default: /* AF_INET */ - sin = (struct sockaddr_in *) sa; - - addr = port->addrs; - - /* the last address is "*" */ - - for (i = 0; i < port->naddrs - 1; i++) { - if (addr[i].addr == sin->sin_addr.s_addr) { - break; - } - } - - addr_conf = &addr[i].conf; - - break; - } - - } else { - switch (c->local_sockaddr->sa_family) { - -#if (NGX_HAVE_INET6) - case AF_INET6: - addr6 = port->addrs; - addr_conf = &addr6[0].conf; - break; -#endif - - default: /* AF_INET */ - addr = port->addrs; - addr_conf = &addr[0].conf; - break; - } - } - - s = ngx_pcalloc(c->pool, sizeof(ngx_mail_session_t)); - if (s == NULL) { - ngx_mail_close_connection(c); - return; - } - - s->signature = NGX_MAIL_MODULE; - - s->main_conf = addr_conf->ctx->main_conf; - s->srv_conf = addr_conf->ctx->srv_conf; - - s->addr_text = &addr_conf->addr_text; - - c->data = s; - s->connection = c; - - cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); - - ngx_set_connection_log(c, cscf->error_log); - - len = ngx_sock_ntop(c->sockaddr, c->socklen, text, NGX_SOCKADDR_STRLEN, 1); - - ngx_log_error(NGX_LOG_INFO, c->log, 0, "*%uA client %*s connected to %V", - c->number, len, text, s->addr_text); - - ctx = ngx_palloc(c->pool, sizeof(ngx_mail_log_ctx_t)); - if (ctx == NULL) { - ngx_mail_close_connection(c); - return; - } - - ctx->client = &c->addr_text; - ctx->session = s; - - c->log->connection = c->number; - c->log->handler = ngx_mail_log_error; - c->log->data = ctx; - c->log->action = "sending client greeting line"; - - c->log_error = NGX_ERROR_INFO; - -#if (NGX_MAIL_SSL) - { - ngx_mail_ssl_conf_t *sslcf; - - sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); - - if (sslcf->enable) { - c->log->action = "SSL handshaking"; - - ngx_mail_ssl_init_connection(&sslcf->ssl, c); - return; - } - - if (addr_conf->ssl) { - - c->log->action = "SSL handshaking"; - - if (sslcf->ssl.ctx == NULL) { - ngx_log_error(NGX_LOG_ERR, c->log, 0, - "no \"ssl_certificate\" is defined " - "in server listening on SSL port"); - ngx_mail_close_connection(c); - return; - } - - ngx_mail_ssl_init_connection(&sslcf->ssl, c); - return; - } - - } -#endif - - ngx_mail_init_session(c); -} - - -#if (NGX_MAIL_SSL) - -void -ngx_mail_starttls_handler(ngx_event_t *rev) -{ - ngx_connection_t *c; - ngx_mail_session_t *s; - ngx_mail_ssl_conf_t *sslcf; - - c = rev->data; - s = c->data; - s->starttls = 1; - - c->log->action = "in starttls state"; - - sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); - - ngx_mail_ssl_init_connection(&sslcf->ssl, c); -} - - -static void -ngx_mail_ssl_init_connection(ngx_ssl_t *ssl, ngx_connection_t *c) -{ - ngx_mail_session_t *s; - ngx_mail_core_srv_conf_t *cscf; - - if (ngx_ssl_create_connection(ssl, c, 0) != NGX_OK) { - ngx_mail_close_connection(c); - return; - } - - if (ngx_ssl_handshake(c) == NGX_AGAIN) { - - s = c->data; - - cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); - - ngx_add_timer(c->read, cscf->timeout); - - c->ssl->handler = ngx_mail_ssl_handshake_handler; - - return; - } - - ngx_mail_ssl_handshake_handler(c); -} - - -static void -ngx_mail_ssl_handshake_handler(ngx_connection_t *c) -{ - ngx_mail_session_t *s; - ngx_mail_core_srv_conf_t *cscf; - - if (c->ssl->handshaked) { - - s = c->data; - - if (ngx_mail_verify_cert(s, c) != NGX_OK) { - return; - } - - if (s->starttls) { - cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); - - c->read->handler = cscf->protocol->init_protocol; - c->write->handler = ngx_mail_send; - - cscf->protocol->init_protocol(c->read); - - return; - } - - c->read->ready = 0; - - ngx_mail_init_session(c); - return; - } - - ngx_mail_close_connection(c); -} - - -static ngx_int_t -ngx_mail_verify_cert(ngx_mail_session_t *s, ngx_connection_t *c) -{ - long rc; - X509 *cert; - ngx_mail_ssl_conf_t *sslcf; - ngx_mail_core_srv_conf_t *cscf; - - sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); - - if (!sslcf->verify) { - return NGX_OK; - } - - rc = SSL_get_verify_result(c->ssl->connection); - - if (rc != X509_V_OK - && (sslcf->verify != 3 || !ngx_ssl_verify_error_optional(rc))) - { - ngx_log_error(NGX_LOG_INFO, c->log, 0, - "client SSL certificate verify error: (%l:%s)", - rc, X509_verify_cert_error_string(rc)); - - ngx_ssl_remove_cached_session(c->ssl->session_ctx, - (SSL_get0_session(c->ssl->connection))); - - cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); - - s->out = cscf->protocol->cert_error; - s->quit = 1; - - c->write->handler = ngx_mail_send; - - ngx_mail_send(s->connection->write); - return NGX_ERROR; - } - - if (sslcf->verify == 1) { - cert = SSL_get_peer_certificate(c->ssl->connection); - - if (cert == NULL) { - ngx_log_error(NGX_LOG_INFO, c->log, 0, - "client sent no required SSL certificate"); - - ngx_ssl_remove_cached_session(c->ssl->session_ctx, - (SSL_get0_session(c->ssl->connection))); - - cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); - - s->out = cscf->protocol->no_cert; - s->quit = 1; - - c->write->handler = ngx_mail_send; - - ngx_mail_send(s->connection->write); - return NGX_ERROR; - } - - X509_free(cert); - } - - return NGX_OK; -} - -#endif - - -static void -ngx_mail_init_session(ngx_connection_t *c) -{ - ngx_mail_session_t *s; - ngx_mail_core_srv_conf_t *cscf; - - s = c->data; - - cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); - - s->protocol = cscf->protocol->type; - - s->ctx = ngx_pcalloc(c->pool, sizeof(void *) * ngx_mail_max_module); - if (s->ctx == NULL) { - ngx_mail_session_internal_server_error(s); - return; - } - - c->write->handler = ngx_mail_send; - - cscf->protocol->init_session(s, c); -} - - -ngx_int_t -ngx_mail_salt(ngx_mail_session_t *s, ngx_connection_t *c, - ngx_mail_core_srv_conf_t *cscf) -{ - s->salt.data = ngx_pnalloc(c->pool, - sizeof(" <18446744073709551616.@>" CRLF) - 1 - + NGX_TIME_T_LEN - + cscf->server_name.len); - if (s->salt.data == NULL) { - return NGX_ERROR; - } - - s->salt.len = ngx_sprintf(s->salt.data, "<%ul.%T@%V>" CRLF, - ngx_random(), ngx_time(), &cscf->server_name) - - s->salt.data; - - return NGX_OK; -} - - -#if (NGX_MAIL_SSL) - -ngx_int_t -ngx_mail_starttls_only(ngx_mail_session_t *s, ngx_connection_t *c) -{ - ngx_mail_ssl_conf_t *sslcf; - - if (c->ssl) { - return 0; - } - - sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); - - if (sslcf->starttls == NGX_MAIL_STARTTLS_ONLY) { - return 1; - } - - return 0; -} - -#endif - - -ngx_int_t -ngx_mail_auth_plain(ngx_mail_session_t *s, ngx_connection_t *c, ngx_uint_t n) -{ - u_char *p, *last; - ngx_str_t *arg, plain; - - arg = s->args.elts; - -#if (NGX_DEBUG_MAIL_PASSWD) - ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, - "mail auth plain: \"%V\"", &arg[n]); -#endif - - plain.data = ngx_pnalloc(c->pool, ngx_base64_decoded_length(arg[n].len)); - if (plain.data == NULL) { - return NGX_ERROR; - } - - if (ngx_decode_base64(&plain, &arg[n]) != NGX_OK) { - ngx_log_error(NGX_LOG_INFO, c->log, 0, - "client sent invalid base64 encoding in AUTH PLAIN command"); - return NGX_MAIL_PARSE_INVALID_COMMAND; - } - - p = plain.data; - last = p + plain.len; - - while (p < last && *p++) { /* void */ } - - if (p == last) { - ngx_log_error(NGX_LOG_INFO, c->log, 0, - "client sent invalid login in AUTH PLAIN command"); - return NGX_MAIL_PARSE_INVALID_COMMAND; - } - - s->login.data = p; - - while (p < last && *p) { p++; } - - if (p == last) { - ngx_log_error(NGX_LOG_INFO, c->log, 0, - "client sent invalid password in AUTH PLAIN command"); - return NGX_MAIL_PARSE_INVALID_COMMAND; - } - - s->login.len = p++ - s->login.data; - - s->passwd.len = last - p; - s->passwd.data = p; - -#if (NGX_DEBUG_MAIL_PASSWD) - ngx_log_debug2(NGX_LOG_DEBUG_MAIL, c->log, 0, - "mail auth plain: \"%V\" \"%V\"", &s->login, &s->passwd); -#endif - - return NGX_DONE; -} - - -ngx_int_t -ngx_mail_auth_login_username(ngx_mail_session_t *s, ngx_connection_t *c, - ngx_uint_t n) -{ - ngx_str_t *arg; - - arg = s->args.elts; - - ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, - "mail auth login username: \"%V\"", &arg[n]); - - s->login.data = ngx_pnalloc(c->pool, ngx_base64_decoded_length(arg[n].len)); - if (s->login.data == NULL) { - return NGX_ERROR; - } - - if (ngx_decode_base64(&s->login, &arg[n]) != NGX_OK) { - ngx_log_error(NGX_LOG_INFO, c->log, 0, - "client sent invalid base64 encoding in AUTH LOGIN command"); - return NGX_MAIL_PARSE_INVALID_COMMAND; - } - - ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, - "mail auth login username: \"%V\"", &s->login); - - return NGX_OK; -} - - -ngx_int_t -ngx_mail_auth_login_password(ngx_mail_session_t *s, ngx_connection_t *c) -{ - ngx_str_t *arg; - - arg = s->args.elts; - -#if (NGX_DEBUG_MAIL_PASSWD) - ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, - "mail auth login password: \"%V\"", &arg[0]); -#endif - - s->passwd.data = ngx_pnalloc(c->pool, - ngx_base64_decoded_length(arg[0].len)); - if (s->passwd.data == NULL) { - return NGX_ERROR; - } - - if (ngx_decode_base64(&s->passwd, &arg[0]) != NGX_OK) { - ngx_log_error(NGX_LOG_INFO, c->log, 0, - "client sent invalid base64 encoding in AUTH LOGIN command"); - return NGX_MAIL_PARSE_INVALID_COMMAND; - } - -#if (NGX_DEBUG_MAIL_PASSWD) - ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, - "mail auth login password: \"%V\"", &s->passwd); -#endif - - return NGX_DONE; -} - - -ngx_int_t -ngx_mail_auth_cram_md5_salt(ngx_mail_session_t *s, ngx_connection_t *c, - char *prefix, size_t len) -{ - u_char *p; - ngx_str_t salt; - ngx_uint_t n; - - p = ngx_pnalloc(c->pool, len + ngx_base64_encoded_length(s->salt.len) + 2); - if (p == NULL) { - return NGX_ERROR; - } - - salt.data = ngx_cpymem(p, prefix, len); - s->salt.len -= 2; - - ngx_encode_base64(&salt, &s->salt); - - s->salt.len += 2; - n = len + salt.len; - p[n++] = CR; p[n++] = LF; - - s->out.len = n; - s->out.data = p; - - return NGX_OK; -} - - -ngx_int_t -ngx_mail_auth_cram_md5(ngx_mail_session_t *s, ngx_connection_t *c) -{ - u_char *p, *last; - ngx_str_t *arg; - - arg = s->args.elts; - - ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, - "mail auth cram-md5: \"%V\"", &arg[0]); - - s->login.data = ngx_pnalloc(c->pool, ngx_base64_decoded_length(arg[0].len)); - if (s->login.data == NULL) { - return NGX_ERROR; - } - - if (ngx_decode_base64(&s->login, &arg[0]) != NGX_OK) { - ngx_log_error(NGX_LOG_INFO, c->log, 0, - "client sent invalid base64 encoding in AUTH CRAM-MD5 command"); - return NGX_MAIL_PARSE_INVALID_COMMAND; - } - - p = s->login.data; - last = p + s->login.len; - - while (p < last) { - if (*p++ == ' ') { - s->login.len = p - s->login.data - 1; - s->passwd.len = last - p; - s->passwd.data = p; - break; - } - } - - if (s->passwd.len != 32) { - ngx_log_error(NGX_LOG_INFO, c->log, 0, - "client sent invalid CRAM-MD5 hash in AUTH CRAM-MD5 command"); - return NGX_MAIL_PARSE_INVALID_COMMAND; - } - - ngx_log_debug2(NGX_LOG_DEBUG_MAIL, c->log, 0, - "mail auth cram-md5: \"%V\" \"%V\"", &s->login, &s->passwd); - - s->auth_method = NGX_MAIL_AUTH_CRAM_MD5; - - return NGX_DONE; -} - - -ngx_int_t -ngx_mail_auth_external(ngx_mail_session_t *s, ngx_connection_t *c, - ngx_uint_t n) -{ - ngx_str_t *arg, external; - - arg = s->args.elts; - - ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, - "mail auth external: \"%V\"", &arg[n]); - - external.data = ngx_pnalloc(c->pool, ngx_base64_decoded_length(arg[n].len)); - if (external.data == NULL) { - return NGX_ERROR; - } - - if (ngx_decode_base64(&external, &arg[n]) != NGX_OK) { - ngx_log_error(NGX_LOG_INFO, c->log, 0, - "client sent invalid base64 encoding in AUTH EXTERNAL command"); - return NGX_MAIL_PARSE_INVALID_COMMAND; - } - - s->login.len = external.len; - s->login.data = external.data; - - ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, - "mail auth external: \"%V\"", &s->login); - - s->auth_method = NGX_MAIL_AUTH_EXTERNAL; - - return NGX_DONE; -} - - -void -ngx_mail_send(ngx_event_t *wev) -{ - ngx_int_t n; - ngx_connection_t *c; - ngx_mail_session_t *s; - ngx_mail_core_srv_conf_t *cscf; - - c = wev->data; - s = c->data; - - if (wev->timedout) { - ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out"); - c->timedout = 1; - ngx_mail_close_connection(c); - return; - } - - if (s->out.len == 0) { - if (ngx_handle_write_event(c->write, 0) != NGX_OK) { - ngx_mail_close_connection(c); - } - - return; - } - - n = c->send(c, s->out.data, s->out.len); - - if (n > 0) { - s->out.data += n; - s->out.len -= n; - - if (s->out.len != 0) { - goto again; - } - - if (wev->timer_set) { - ngx_del_timer(wev); - } - - if (s->quit) { - ngx_mail_close_connection(c); - return; - } - - if (s->blocked) { - c->read->handler(c->read); - } - - return; - } - - if (n == NGX_ERROR) { - ngx_mail_close_connection(c); - return; - } - - /* n == NGX_AGAIN */ - -again: - - cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); - - ngx_add_timer(c->write, cscf->timeout); - - if (ngx_handle_write_event(c->write, 0) != NGX_OK) { - ngx_mail_close_connection(c); - return; - } -} - - -ngx_int_t -ngx_mail_read_command(ngx_mail_session_t *s, ngx_connection_t *c) -{ - ssize_t n; - ngx_int_t rc; - ngx_str_t l; - ngx_mail_core_srv_conf_t *cscf; - - n = c->recv(c, s->buffer->last, s->buffer->end - s->buffer->last); - - if (n == NGX_ERROR || n == 0) { - ngx_mail_close_connection(c); - return NGX_ERROR; - } - - if (n > 0) { - s->buffer->last += n; - } - - if (n == NGX_AGAIN) { - if (ngx_handle_read_event(c->read, 0) != NGX_OK) { - ngx_mail_session_internal_server_error(s); - return NGX_ERROR; - } - - if (s->buffer->pos == s->buffer->last) { - return NGX_AGAIN; - } - } - - cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); - - rc = cscf->protocol->parse_command(s); - - if (rc == NGX_AGAIN) { - - if (s->buffer->last < s->buffer->end) { - return rc; - } - - l.len = s->buffer->last - s->buffer->start; - l.data = s->buffer->start; - - ngx_log_error(NGX_LOG_INFO, c->log, 0, - "client sent too long command \"%V\"", &l); - - s->quit = 1; - - return NGX_MAIL_PARSE_INVALID_COMMAND; - } - - if (rc == NGX_IMAP_NEXT || rc == NGX_MAIL_PARSE_INVALID_COMMAND) { - return rc; - } - - if (rc == NGX_ERROR) { - ngx_mail_close_connection(c); - return NGX_ERROR; - } - - return NGX_OK; -} - - -void -ngx_mail_auth(ngx_mail_session_t *s, ngx_connection_t *c) -{ - s->args.nelts = 0; - - if (s->buffer->pos == s->buffer->last) { - s->buffer->pos = s->buffer->start; - s->buffer->last = s->buffer->start; - } - - s->state = 0; - - if (c->read->timer_set) { - ngx_del_timer(c->read); - } - - s->login_attempt++; - - ngx_mail_auth_http_init(s); -} - - -void -ngx_mail_session_internal_server_error(ngx_mail_session_t *s) -{ - ngx_mail_core_srv_conf_t *cscf; - - cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); - - s->out = cscf->protocol->internal_server_error; - s->quit = 1; - - ngx_mail_send(s->connection->write); -} - - -void -ngx_mail_close_connection(ngx_connection_t *c) -{ - ngx_pool_t *pool; - - ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, - "close mail connection: %d", c->fd); - -#if (NGX_MAIL_SSL) - - if (c->ssl) { - if (ngx_ssl_shutdown(c) == NGX_AGAIN) { - c->ssl->handler = ngx_mail_close_connection; - return; - } - } - -#endif - -#if (NGX_STAT_STUB) - (void) ngx_atomic_fetch_add(ngx_stat_active, -1); -#endif - - c->destroyed = 1; - - pool = c->pool; - - ngx_close_connection(c); - - ngx_destroy_pool(pool); -} - - -u_char * -ngx_mail_log_error(ngx_log_t *log, u_char *buf, size_t len) -{ - u_char *p; - ngx_mail_session_t *s; - ngx_mail_log_ctx_t *ctx; - - if (log->action) { - p = ngx_snprintf(buf, len, " while %s", log->action); - len -= p - buf; - buf = p; - } - - ctx = log->data; - - p = ngx_snprintf(buf, len, ", client: %V", ctx->client); - len -= p - buf; - buf = p; - - s = ctx->session; - - if (s == NULL) { - return p; - } - - p = ngx_snprintf(buf, len, "%s, server: %V", - s->starttls ? " using starttls" : "", - s->addr_text); - len -= p - buf; - buf = p; - - if (s->login.len == 0) { - return p; - } - - p = ngx_snprintf(buf, len, ", login: \"%V\"", &s->login); - len -= p - buf; - buf = p; - - if (s->proxy == NULL) { - return p; - } - - p = ngx_snprintf(buf, len, ", upstream: %V", s->proxy->upstream.name); - - return p; -} diff --git a/nginx/src/mail/ngx_mail_imap_handler.c b/nginx/src/mail/ngx_mail_imap_handler.c deleted file mode 100644 index 3bf09ec..0000000 --- a/nginx/src/mail/ngx_mail_imap_handler.c +++ /dev/null @@ -1,472 +0,0 @@ - -/* - * Copyright (C) Igor Sysoev - * Copyright (C) Nginx, Inc. - */ - - -#include <ngx_config.h> -#include <ngx_core.h> -#include <ngx_event.h> -#include <ngx_mail.h> -#include <ngx_mail_imap_module.h> - - -static ngx_int_t ngx_mail_imap_login(ngx_mail_session_t *s, - ngx_connection_t *c); -static ngx_int_t ngx_mail_imap_authenticate(ngx_mail_session_t *s, - ngx_connection_t *c); -static ngx_int_t ngx_mail_imap_capability(ngx_mail_session_t *s, - ngx_connection_t *c); -static ngx_int_t ngx_mail_imap_starttls(ngx_mail_session_t *s, - ngx_connection_t *c); - - -static u_char imap_greeting[] = "* OK IMAP4 ready" CRLF; -static u_char imap_star[] = "* "; -static u_char imap_ok[] = "OK completed" CRLF; -static u_char imap_next[] = "+ OK" CRLF; -static u_char imap_plain_next[] = "+ " CRLF; -static u_char imap_username[] = "+ VXNlcm5hbWU6" CRLF; -static u_char imap_password[] = "+ UGFzc3dvcmQ6" CRLF; -static u_char imap_bye[] = "* BYE" CRLF; -static u_char imap_invalid_command[] = "BAD invalid command" CRLF; - - -void -ngx_mail_imap_init_session(ngx_mail_session_t *s, ngx_connection_t *c) -{ - ngx_mail_core_srv_conf_t *cscf; - - cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); - - ngx_str_set(&s->out, imap_greeting); - - c->read->handler = ngx_mail_imap_init_protocol; - - ngx_add_timer(c->read, cscf->timeout); - - if (ngx_handle_read_event(c->read, 0) != NGX_OK) { - ngx_mail_close_connection(c); - } - - ngx_mail_send(c->write); -} - - -void -ngx_mail_imap_init_protocol(ngx_event_t *rev) -{ - ngx_connection_t *c; - ngx_mail_session_t *s; - ngx_mail_imap_srv_conf_t *iscf; - - c = rev->data; - - c->log->action = "in auth state"; - - if (rev->timedout) { - ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out"); - c->timedout = 1; - ngx_mail_close_connection(c); - return; - } - - s = c->data; - - if (s->buffer == NULL) { - if (ngx_array_init(&s->args, c->pool, 2, sizeof(ngx_str_t)) - == NGX_ERROR) - { - ngx_mail_session_internal_server_error(s); - return; - } - - iscf = ngx_mail_get_module_srv_conf(s, ngx_mail_imap_module); - - s->buffer = ngx_create_temp_buf(c->pool, iscf->client_buffer_size); - if (s->buffer == NULL) { - ngx_mail_session_internal_server_error(s); - return; - } - } - - s->mail_state = ngx_imap_start; - c->read->handler = ngx_mail_imap_auth_state; - - ngx_mail_imap_auth_state(rev); -} - - -void -ngx_mail_imap_auth_state(ngx_event_t *rev) -{ - u_char *p, *dst, *src, *end; - ngx_str_t *arg; - ngx_int_t rc; - ngx_uint_t tag, i; - ngx_connection_t *c; - ngx_mail_session_t *s; - - c = rev->data; - s = c->data; - - ngx_log_debug0(NGX_LOG_DEBUG_MAIL, c->log, 0, "imap auth state"); - - if (rev->timedout) { - ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out"); - c->timedout = 1; - ngx_mail_close_connection(c); - return; - } - - if (s->out.len) { - ngx_log_debug0(NGX_LOG_DEBUG_MAIL, c->log, 0, "imap send handler busy"); - s->blocked = 1; - return; - } - - s->blocked = 0; - - rc = ngx_mail_read_command(s, c); - - if (rc == NGX_AGAIN || rc == NGX_ERROR) { - return; - } - - tag = 1; - s->text.len = 0; - ngx_str_set(&s->out, imap_ok); - - if (rc == NGX_OK) { - - ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, "imap auth command: %i", - s->command); - - if (s->backslash) { - - arg = s->args.elts; - - for (i = 0; i < s->args.nelts; i++) { - dst = arg[i].data; - end = dst + arg[i].len; - - for (src = dst; src < end; dst++) { - *dst = *src; - if (*src++ == '\\') { - *dst = *src++; - } - } - - arg[i].len = dst - arg[i].data; - } - - s->backslash = 0; - } - - switch (s->mail_state) { - - case ngx_imap_start: - - switch (s->command) { - - case NGX_IMAP_LOGIN: - rc = ngx_mail_imap_login(s, c); - break; - - case NGX_IMAP_AUTHENTICATE: - rc = ngx_mail_imap_authenticate(s, c); - tag = (rc != NGX_OK); - break; - - case NGX_IMAP_CAPABILITY: - rc = ngx_mail_imap_capability(s, c); - break; - - case NGX_IMAP_LOGOUT: - s->quit = 1; - ngx_str_set(&s->text, imap_bye); - break; - - case NGX_IMAP_NOOP: - break; - - case NGX_IMAP_STARTTLS: - rc = ngx_mail_imap_starttls(s, c); - break; - - default: - rc = NGX_MAIL_PARSE_INVALID_COMMAND; - break; - } - - break; - - case ngx_imap_auth_login_username: - rc = ngx_mail_auth_login_username(s, c, 0); - - tag = 0; - ngx_str_set(&s->out, imap_password); - s->mail_state = ngx_imap_auth_login_password; - - break; - - case ngx_imap_auth_login_password: - rc = ngx_mail_auth_login_password(s, c); - break; - - case ngx_imap_auth_plain: - rc = ngx_mail_auth_plain(s, c, 0); - break; - - case ngx_imap_auth_cram_md5: - rc = ngx_mail_auth_cram_md5(s, c); - break; - - case ngx_imap_auth_external: - rc = ngx_mail_auth_external(s, c, 0); - break; - } - - } else if (rc == NGX_IMAP_NEXT) { - tag = 0; - ngx_str_set(&s->out, imap_next); - } - - switch (rc) { - - case NGX_DONE: - ngx_mail_auth(s, c); - return; - - case NGX_ERROR: - ngx_mail_session_internal_server_error(s); - return; - - case NGX_MAIL_PARSE_INVALID_COMMAND: - s->state = 0; - ngx_str_set(&s->out, imap_invalid_command); - s->mail_state = ngx_imap_start; - break; - } - - if (tag) { - if (s->tag.len == 0) { - ngx_str_set(&s->tag, imap_star); - } - - if (s->tagged_line.len < s->tag.len + s->text.len + s->out.len) { - s->tagged_line.len = s->tag.len + s->text.len + s->out.len; - s->tagged_line.data = ngx_pnalloc(c->pool, s->tagged_line.len); - if (s->tagged_line.data == NULL) { - ngx_mail_close_connection(c); - return; - } - } - - p = s->tagged_line.data; - - if (s->text.len) { - p = ngx_cpymem(p, s->text.data, s->text.len); - } - - p = ngx_cpymem(p, s->tag.data, s->tag.len); - ngx_memcpy(p, s->out.data, s->out.len); - - s->out.len = s->text.len + s->tag.len + s->out.len; - s->out.data = s->tagged_line.data; - } - - if (rc != NGX_IMAP_NEXT) { - s->args.nelts = 0; - - if (s->state) { - /* preserve tag */ - s->arg_start = s->buffer->start + s->tag.len; - s->buffer->pos = s->arg_start; - s->buffer->last = s->arg_start; - - } else { - s->buffer->pos = s->buffer->start; - s->buffer->last = s->buffer->start; - s->tag.len = 0; - } - } - - ngx_mail_send(c->write); -} - - -static ngx_int_t -ngx_mail_imap_login(ngx_mail_session_t *s, ngx_connection_t *c) -{ - ngx_str_t *arg; - -#if (NGX_MAIL_SSL) - if (ngx_mail_starttls_only(s, c)) { - return NGX_MAIL_PARSE_INVALID_COMMAND; - } -#endif - - arg = s->args.elts; - - if (s->args.nelts != 2 || arg[0].len == 0) { - return NGX_MAIL_PARSE_INVALID_COMMAND; - } - - s->login.len = arg[0].len; - s->login.data = ngx_pnalloc(c->pool, s->login.len); - if (s->login.data == NULL) { - return NGX_ERROR; - } - - ngx_memcpy(s->login.data, arg[0].data, s->login.len); - - s->passwd.len = arg[1].len; - s->passwd.data = ngx_pnalloc(c->pool, s->passwd.len); - if (s->passwd.data == NULL) { - return NGX_ERROR; - } - - ngx_memcpy(s->passwd.data, arg[1].data, s->passwd.len); - -#if (NGX_DEBUG_MAIL_PASSWD) - ngx_log_debug2(NGX_LOG_DEBUG_MAIL, c->log, 0, - "imap login:\"%V\" passwd:\"%V\"", - &s->login, &s->passwd); -#else - ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, - "imap login:\"%V\"", &s->login); -#endif - - return NGX_DONE; -} - - -static ngx_int_t -ngx_mail_imap_authenticate(ngx_mail_session_t *s, ngx_connection_t *c) -{ - ngx_int_t rc; - ngx_mail_core_srv_conf_t *cscf; - ngx_mail_imap_srv_conf_t *iscf; - -#if (NGX_MAIL_SSL) - if (ngx_mail_starttls_only(s, c)) { - return NGX_MAIL_PARSE_INVALID_COMMAND; - } -#endif - - iscf = ngx_mail_get_module_srv_conf(s, ngx_mail_imap_module); - - rc = ngx_mail_auth_parse(s, c); - - switch (rc) { - - case NGX_MAIL_AUTH_LOGIN: - - ngx_str_set(&s->out, imap_username); - s->mail_state = ngx_imap_auth_login_username; - - return NGX_OK; - - case NGX_MAIL_AUTH_LOGIN_USERNAME: - - ngx_str_set(&s->out, imap_password); - s->mail_state = ngx_imap_auth_login_password; - - return ngx_mail_auth_login_username(s, c, 1); - - case NGX_MAIL_AUTH_PLAIN: - - ngx_str_set(&s->out, imap_plain_next); - s->mail_state = ngx_imap_auth_plain; - - return NGX_OK; - - case NGX_MAIL_AUTH_CRAM_MD5: - - if (!(iscf->auth_methods & NGX_MAIL_AUTH_CRAM_MD5_ENABLED)) { - return NGX_MAIL_PARSE_INVALID_COMMAND; - } - - if (s->salt.data == NULL) { - cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); - - if (ngx_mail_salt(s, c, cscf) != NGX_OK) { - return NGX_ERROR; - } - } - - if (ngx_mail_auth_cram_md5_salt(s, c, "+ ", 2) == NGX_OK) { - s->mail_state = ngx_imap_auth_cram_md5; - return NGX_OK; - } - - return NGX_ERROR; - - case NGX_MAIL_AUTH_EXTERNAL: - - if (!(iscf->auth_methods & NGX_MAIL_AUTH_EXTERNAL_ENABLED)) { - return NGX_MAIL_PARSE_INVALID_COMMAND; - } - - ngx_str_set(&s->out, imap_username); - s->mail_state = ngx_imap_auth_external; - - return NGX_OK; - } - - return rc; -} - - -static ngx_int_t -ngx_mail_imap_capability(ngx_mail_session_t *s, ngx_connection_t *c) -{ - ngx_mail_imap_srv_conf_t *iscf; - - iscf = ngx_mail_get_module_srv_conf(s, ngx_mail_imap_module); - -#if (NGX_MAIL_SSL) - - if (c->ssl == NULL) { - ngx_mail_ssl_conf_t *sslcf; - - sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); - - if (sslcf->starttls == NGX_MAIL_STARTTLS_ON) { - s->text = iscf->starttls_capability; - return NGX_OK; - } - - if (sslcf->starttls == NGX_MAIL_STARTTLS_ONLY) { - s->text = iscf->starttls_only_capability; - return NGX_OK; - } - } -#endif - - s->text = iscf->capability; - - return NGX_OK; -} - - -static ngx_int_t -ngx_mail_imap_starttls(ngx_mail_session_t *s, ngx_connection_t *c) -{ -#if (NGX_MAIL_SSL) - ngx_mail_ssl_conf_t *sslcf; - - if (c->ssl == NULL) { - sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); - if (sslcf->starttls) { - c->read->handler = ngx_mail_starttls_handler; - return NGX_OK; - } - } - -#endif - - return NGX_MAIL_PARSE_INVALID_COMMAND; -} diff --git a/nginx/src/mail/ngx_mail_imap_module.c b/nginx/src/mail/ngx_mail_imap_module.c deleted file mode 100644 index 1f187fd..0000000 --- a/nginx/src/mail/ngx_mail_imap_module.c +++ /dev/null @@ -1,257 +0,0 @@ - -/* - * Copyright (C) Igor Sysoev - * Copyright (C) Nginx, Inc. - */ - - -#include <ngx_config.h> -#include <ngx_core.h> -#include <ngx_event.h> -#include <ngx_mail.h> -#include <ngx_mail_imap_module.h> - - -static void *ngx_mail_imap_create_srv_conf(ngx_conf_t *cf); -static char *ngx_mail_imap_merge_srv_conf(ngx_conf_t *cf, void *parent, - void *child); - - -static ngx_str_t ngx_mail_imap_default_capabilities[] = { - ngx_string("IMAP4"), - ngx_string("IMAP4rev1"), - ngx_string("UIDPLUS"), - ngx_null_string -}; - - -static ngx_conf_bitmask_t ngx_mail_imap_auth_methods[] = { - { ngx_string("plain"), NGX_MAIL_AUTH_PLAIN_ENABLED }, - { ngx_string("login"), NGX_MAIL_AUTH_LOGIN_ENABLED }, - { ngx_string("cram-md5"), NGX_MAIL_AUTH_CRAM_MD5_ENABLED }, - { ngx_string("external"), NGX_MAIL_AUTH_EXTERNAL_ENABLED }, - { ngx_null_string, 0 } -}; - - -static ngx_str_t ngx_mail_imap_auth_methods_names[] = { - ngx_string("AUTH=PLAIN"), - ngx_string("AUTH=LOGIN"), - ngx_null_string, /* APOP */ - ngx_string("AUTH=CRAM-MD5"), - ngx_string("AUTH=EXTERNAL"), - ngx_null_string /* NONE */ -}; - - -static ngx_mail_protocol_t ngx_mail_imap_protocol = { - ngx_string("imap"), - { 143, 993, 0, 0 }, - NGX_MAIL_IMAP_PROTOCOL, - - ngx_mail_imap_init_session, - ngx_mail_imap_init_protocol, - ngx_mail_imap_parse_command, - ngx_mail_imap_auth_state, - - ngx_string("* BAD internal server error" CRLF), - ngx_string("* BYE SSL certificate error" CRLF), - ngx_string("* BYE No required SSL certificate" CRLF) -}; - - -static ngx_command_t ngx_mail_imap_commands[] = { - - { ngx_string("imap_client_buffer"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, - ngx_conf_set_size_slot, - NGX_MAIL_SRV_CONF_OFFSET, - offsetof(ngx_mail_imap_srv_conf_t, client_buffer_size), - NULL }, - - { ngx_string("imap_capabilities"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_1MORE, - ngx_mail_capabilities, - NGX_MAIL_SRV_CONF_OFFSET, - offsetof(ngx_mail_imap_srv_conf_t, capabilities), - NULL }, - - { ngx_string("imap_auth"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_1MORE, - ngx_conf_set_bitmask_slot, - NGX_MAIL_SRV_CONF_OFFSET, - offsetof(ngx_mail_imap_srv_conf_t, auth_methods), - &ngx_mail_imap_auth_methods }, - - ngx_null_command -}; - - -static ngx_mail_module_t ngx_mail_imap_module_ctx = { - &ngx_mail_imap_protocol, /* protocol */ - - NULL, /* create main configuration */ - NULL, /* init main configuration */ - - ngx_mail_imap_create_srv_conf, /* create server configuration */ - ngx_mail_imap_merge_srv_conf /* merge server configuration */ -}; - - -ngx_module_t ngx_mail_imap_module = { - NGX_MODULE_V1, - &ngx_mail_imap_module_ctx, /* module context */ - ngx_mail_imap_commands, /* module directives */ - NGX_MAIL_MODULE, /* module type */ - NULL, /* init master */ - NULL, /* init module */ - NULL, /* init process */ - NULL, /* init thread */ - NULL, /* exit thread */ - NULL, /* exit process */ - NULL, /* exit master */ - NGX_MODULE_V1_PADDING -}; - - -static void * -ngx_mail_imap_create_srv_conf(ngx_conf_t *cf) -{ - ngx_mail_imap_srv_conf_t *iscf; - - iscf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_imap_srv_conf_t)); - if (iscf == NULL) { - return NULL; - } - - iscf->client_buffer_size = NGX_CONF_UNSET_SIZE; - - if (ngx_array_init(&iscf->capabilities, cf->pool, 4, sizeof(ngx_str_t)) - != NGX_OK) - { - return NULL; - } - - return iscf; -} - - -static char * -ngx_mail_imap_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) -{ - ngx_mail_imap_srv_conf_t *prev = parent; - ngx_mail_imap_srv_conf_t *conf = child; - - u_char *p, *auth; - size_t size; - ngx_str_t *c, *d; - ngx_uint_t i, m; - - ngx_conf_merge_size_value(conf->client_buffer_size, - prev->client_buffer_size, - (size_t) ngx_pagesize); - - ngx_conf_merge_bitmask_value(conf->auth_methods, - prev->auth_methods, - (NGX_CONF_BITMASK_SET - |NGX_MAIL_AUTH_PLAIN_ENABLED)); - - - if (conf->capabilities.nelts == 0) { - conf->capabilities = prev->capabilities; - } - - if (conf->capabilities.nelts == 0) { - - for (d = ngx_mail_imap_default_capabilities; d->len; d++) { - c = ngx_array_push(&conf->capabilities); - if (c == NULL) { - return NGX_CONF_ERROR; - } - - *c = *d; - } - } - - size = sizeof("* CAPABILITY" CRLF) - 1; - - c = conf->capabilities.elts; - for (i = 0; i < conf->capabilities.nelts; i++) { - size += 1 + c[i].len; - } - - for (m = NGX_MAIL_AUTH_PLAIN_ENABLED, i = 0; - m <= NGX_MAIL_AUTH_EXTERNAL_ENABLED; - m <<= 1, i++) - { - if (m & conf->auth_methods) { - size += 1 + ngx_mail_imap_auth_methods_names[i].len; - } - } - - p = ngx_pnalloc(cf->pool, size); - if (p == NULL) { - return NGX_CONF_ERROR; - } - - conf->capability.len = size; - conf->capability.data = p; - - p = ngx_cpymem(p, "* CAPABILITY", sizeof("* CAPABILITY") - 1); - - for (i = 0; i < conf->capabilities.nelts; i++) { - *p++ = ' '; - p = ngx_cpymem(p, c[i].data, c[i].len); - } - - auth = p; - - for (m = NGX_MAIL_AUTH_PLAIN_ENABLED, i = 0; - m <= NGX_MAIL_AUTH_EXTERNAL_ENABLED; - m <<= 1, i++) - { - if (m & conf->auth_methods) { - *p++ = ' '; - p = ngx_cpymem(p, ngx_mail_imap_auth_methods_names[i].data, - ngx_mail_imap_auth_methods_names[i].len); - } - } - - *p++ = CR; *p = LF; - - - size += sizeof(" STARTTLS") - 1; - - p = ngx_pnalloc(cf->pool, size); - if (p == NULL) { - return NGX_CONF_ERROR; - } - - conf->starttls_capability.len = size; - conf->starttls_capability.data = p; - - p = ngx_cpymem(p, conf->capability.data, - conf->capability.len - (sizeof(CRLF) - 1)); - p = ngx_cpymem(p, " STARTTLS", sizeof(" STARTTLS") - 1); - *p++ = CR; *p = LF; - - - size = (auth - conf->capability.data) + sizeof(CRLF) - 1 - + sizeof(" STARTTLS LOGINDISABLED") - 1; - - p = ngx_pnalloc(cf->pool, size); - if (p == NULL) { - return NGX_CONF_ERROR; - } - - conf->starttls_only_capability.len = size; - conf->starttls_only_capability.data = p; - - p = ngx_cpymem(p, conf->capability.data, - auth - conf->capability.data); - p = ngx_cpymem(p, " STARTTLS LOGINDISABLED", - sizeof(" STARTTLS LOGINDISABLED") - 1); - *p++ = CR; *p = LF; - - return NGX_CONF_OK; -} diff --git a/nginx/src/mail/ngx_mail_imap_module.h b/nginx/src/mail/ngx_mail_imap_module.h deleted file mode 100644 index 131b445..0000000 --- a/nginx/src/mail/ngx_mail_imap_module.h +++ /dev/null @@ -1,39 +0,0 @@ - -/* - * Copyright (C) Igor Sysoev - * Copyright (C) Nginx, Inc. - */ - - -#ifndef _NGX_MAIL_IMAP_MODULE_H_INCLUDED_ -#define _NGX_MAIL_IMAP_MODULE_H_INCLUDED_ - - -#include <ngx_config.h> -#include <ngx_core.h> -#include <ngx_mail.h> - - -typedef struct { - size_t client_buffer_size; - - ngx_str_t capability; - ngx_str_t starttls_capability; - ngx_str_t starttls_only_capability; - - ngx_uint_t auth_methods; - - ngx_array_t capabilities; -} ngx_mail_imap_srv_conf_t; - - -void ngx_mail_imap_init_session(ngx_mail_session_t *s, ngx_connection_t *c); -void ngx_mail_imap_init_protocol(ngx_event_t *rev); -void ngx_mail_imap_auth_state(ngx_event_t *rev); -ngx_int_t ngx_mail_imap_parse_command(ngx_mail_session_t *s); - - -extern ngx_module_t ngx_mail_imap_module; - - -#endif /* _NGX_MAIL_IMAP_MODULE_H_INCLUDED_ */ diff --git a/nginx/src/mail/ngx_mail_parse.c b/nginx/src/mail/ngx_mail_parse.c deleted file mode 100644 index 2c2cdff..0000000 --- a/nginx/src/mail/ngx_mail_parse.c +++ /dev/null @@ -1,932 +0,0 @@ - -/* - * Copyright (C) Igor Sysoev - * Copyright (C) Nginx, Inc. - */ - - -#include <ngx_config.h> -#include <ngx_core.h> -#include <ngx_event.h> -#include <ngx_mail.h> -#include <ngx_mail_pop3_module.h> -#include <ngx_mail_imap_module.h> -#include <ngx_mail_smtp_module.h> - - -ngx_int_t -ngx_mail_pop3_parse_command(ngx_mail_session_t *s) -{ - u_char ch, *p, *c, c0, c1, c2, c3; - ngx_str_t *arg; - enum { - sw_start = 0, - sw_spaces_before_argument, - sw_argument, - sw_almost_done - } state; - - state = s->state; - - for (p = s->buffer->pos; p < s->buffer->last; p++) { - ch = *p; - - switch (state) { - - /* POP3 command */ - case sw_start: - if (ch == ' ' || ch == CR || ch == LF) { - c = s->buffer->start; - - if (p - c == 4) { - - c0 = ngx_toupper(c[0]); - c1 = ngx_toupper(c[1]); - c2 = ngx_toupper(c[2]); - c3 = ngx_toupper(c[3]); - - if (c0 == 'U' && c1 == 'S' && c2 == 'E' && c3 == 'R') - { - s->command = NGX_POP3_USER; - - } else if (c0 == 'P' && c1 == 'A' && c2 == 'S' && c3 == 'S') - { - s->command = NGX_POP3_PASS; - - } else if (c0 == 'A' && c1 == 'P' && c2 == 'O' && c3 == 'P') - { - s->command = NGX_POP3_APOP; - - } else if (c0 == 'Q' && c1 == 'U' && c2 == 'I' && c3 == 'T') - { - s->command = NGX_POP3_QUIT; - - } else if (c0 == 'C' && c1 == 'A' && c2 == 'P' && c3 == 'A') - { - s->command = NGX_POP3_CAPA; - - } else if (c0 == 'A' && c1 == 'U' && c2 == 'T' && c3 == 'H') - { - s->command = NGX_POP3_AUTH; - - } else if (c0 == 'N' && c1 == 'O' && c2 == 'O' && c3 == 'P') - { - s->command = NGX_POP3_NOOP; -#if (NGX_MAIL_SSL) - } else if (c0 == 'S' && c1 == 'T' && c2 == 'L' && c3 == 'S') - { - s->command = NGX_POP3_STLS; -#endif - } else { - goto invalid; - } - - } else { - goto invalid; - } - - switch (ch) { - case ' ': - state = sw_spaces_before_argument; - break; - case CR: - state = sw_almost_done; - break; - case LF: - goto done; - } - break; - } - - if ((ch < 'A' || ch > 'Z') && (ch < 'a' || ch > 'z')) { - goto invalid; - } - - break; - - case sw_spaces_before_argument: - switch (ch) { - case ' ': - break; - case CR: - state = sw_almost_done; - s->arg_end = p; - break; - case LF: - s->arg_end = p; - goto done; - default: - if (s->args.nelts <= 2) { - state = sw_argument; - s->arg_start = p; - break; - } - goto invalid; - } - break; - - case sw_argument: - switch (ch) { - - case ' ': - - /* - * the space should be considered as part of the at username - * or password, but not of argument in other commands - */ - - if (s->command == NGX_POP3_USER - || s->command == NGX_POP3_PASS) - { - break; - } - - /* fall through */ - - case CR: - case LF: - arg = ngx_array_push(&s->args); - if (arg == NULL) { - return NGX_ERROR; - } - arg->len = p - s->arg_start; - arg->data = s->arg_start; - s->arg_start = NULL; - - switch (ch) { - case ' ': - state = sw_spaces_before_argument; - break; - case CR: - state = sw_almost_done; - break; - case LF: - goto done; - } - break; - - default: - break; - } - break; - - case sw_almost_done: - switch (ch) { - case LF: - goto done; - default: - goto invalid; - } - } - } - - s->buffer->pos = p; - s->state = state; - - return NGX_AGAIN; - -done: - - s->buffer->pos = p + 1; - - if (s->arg_start) { - arg = ngx_array_push(&s->args); - if (arg == NULL) { - return NGX_ERROR; - } - arg->len = s->arg_end - s->arg_start; - arg->data = s->arg_start; - s->arg_start = NULL; - } - - s->state = (s->command != NGX_POP3_AUTH) ? sw_start : sw_argument; - - return NGX_OK; - -invalid: - - s->state = sw_start; - s->arg_start = NULL; - - return NGX_MAIL_PARSE_INVALID_COMMAND; -} - - -ngx_int_t -ngx_mail_imap_parse_command(ngx_mail_session_t *s) -{ - u_char ch, *p, *c; - ngx_str_t *arg; - enum { - sw_start = 0, - sw_spaces_before_command, - sw_command, - sw_spaces_before_argument, - sw_argument, - sw_backslash, - sw_literal, - sw_no_sync_literal_argument, - sw_start_literal_argument, - sw_literal_argument, - sw_end_literal_argument, - sw_almost_done - } state; - - state = s->state; - - for (p = s->buffer->pos; p < s->buffer->last; p++) { - ch = *p; - - switch (state) { - - /* IMAP tag */ - case sw_start: - switch (ch) { - case ' ': - s->tag.len = p - s->buffer->start + 1; - s->tag.data = s->buffer->start; - state = sw_spaces_before_command; - break; - case CR: - s->state = sw_start; - return NGX_MAIL_PARSE_INVALID_COMMAND; - case LF: - s->state = sw_start; - return NGX_MAIL_PARSE_INVALID_COMMAND; - } - break; - - case sw_spaces_before_command: - switch (ch) { - case ' ': - break; - case CR: - s->state = sw_start; - return NGX_MAIL_PARSE_INVALID_COMMAND; - case LF: - s->state = sw_start; - return NGX_MAIL_PARSE_INVALID_COMMAND; - default: - s->cmd_start = p; - state = sw_command; - break; - } - break; - - case sw_command: - if (ch == ' ' || ch == CR || ch == LF) { - - c = s->cmd_start; - - switch (p - c) { - - case 4: - if ((c[0] == 'N' || c[0] == 'n') - && (c[1] == 'O'|| c[1] == 'o') - && (c[2] == 'O'|| c[2] == 'o') - && (c[3] == 'P'|| c[3] == 'p')) - { - s->command = NGX_IMAP_NOOP; - - } else { - goto invalid; - } - break; - - case 5: - if ((c[0] == 'L'|| c[0] == 'l') - && (c[1] == 'O'|| c[1] == 'o') - && (c[2] == 'G'|| c[2] == 'g') - && (c[3] == 'I'|| c[3] == 'i') - && (c[4] == 'N'|| c[4] == 'n')) - { - s->command = NGX_IMAP_LOGIN; - - } else { - goto invalid; - } - break; - - case 6: - if ((c[0] == 'L'|| c[0] == 'l') - && (c[1] == 'O'|| c[1] == 'o') - && (c[2] == 'G'|| c[2] == 'g') - && (c[3] == 'O'|| c[3] == 'o') - && (c[4] == 'U'|| c[4] == 'u') - && (c[5] == 'T'|| c[5] == 't')) - { - s->command = NGX_IMAP_LOGOUT; - - } else { - goto invalid; - } - break; - -#if (NGX_MAIL_SSL) - case 8: - if ((c[0] == 'S'|| c[0] == 's') - && (c[1] == 'T'|| c[1] == 't') - && (c[2] == 'A'|| c[2] == 'a') - && (c[3] == 'R'|| c[3] == 'r') - && (c[4] == 'T'|| c[4] == 't') - && (c[5] == 'T'|| c[5] == 't') - && (c[6] == 'L'|| c[6] == 'l') - && (c[7] == 'S'|| c[7] == 's')) - { - s->command = NGX_IMAP_STARTTLS; - - } else { - goto invalid; - } - break; -#endif - - case 10: - if ((c[0] == 'C'|| c[0] == 'c') - && (c[1] == 'A'|| c[1] == 'a') - && (c[2] == 'P'|| c[2] == 'p') - && (c[3] == 'A'|| c[3] == 'a') - && (c[4] == 'B'|| c[4] == 'b') - && (c[5] == 'I'|| c[5] == 'i') - && (c[6] == 'L'|| c[6] == 'l') - && (c[7] == 'I'|| c[7] == 'i') - && (c[8] == 'T'|| c[8] == 't') - && (c[9] == 'Y'|| c[9] == 'y')) - { - s->command = NGX_IMAP_CAPABILITY; - - } else { - goto invalid; - } - break; - - case 12: - if ((c[0] == 'A'|| c[0] == 'a') - && (c[1] == 'U'|| c[1] == 'u') - && (c[2] == 'T'|| c[2] == 't') - && (c[3] == 'H'|| c[3] == 'h') - && (c[4] == 'E'|| c[4] == 'e') - && (c[5] == 'N'|| c[5] == 'n') - && (c[6] == 'T'|| c[6] == 't') - && (c[7] == 'I'|| c[7] == 'i') - && (c[8] == 'C'|| c[8] == 'c') - && (c[9] == 'A'|| c[9] == 'a') - && (c[10] == 'T'|| c[10] == 't') - && (c[11] == 'E'|| c[11] == 'e')) - { - s->command = NGX_IMAP_AUTHENTICATE; - - } else { - goto invalid; - } - break; - - default: - goto invalid; - } - - switch (ch) { - case ' ': - state = sw_spaces_before_argument; - break; - case CR: - state = sw_almost_done; - break; - case LF: - goto done; - } - break; - } - - if ((ch < 'A' || ch > 'Z') && (ch < 'a' || ch > 'z')) { - goto invalid; - } - - break; - - case sw_spaces_before_argument: - switch (ch) { - case ' ': - break; - case CR: - state = sw_almost_done; - s->arg_end = p; - break; - case LF: - s->arg_end = p; - goto done; - case '"': - if (s->args.nelts <= 2) { - s->quoted = 1; - s->arg_start = p + 1; - state = sw_argument; - break; - } - goto invalid; - case '{': - if (s->args.nelts <= 2) { - state = sw_literal; - break; - } - goto invalid; - default: - if (s->args.nelts <= 2) { - s->arg_start = p; - state = sw_argument; - break; - } - goto invalid; - } - break; - - case sw_argument: - if (ch == ' ' && s->quoted) { - break; - } - - switch (ch) { - case '"': - if (!s->quoted) { - break; - } - s->quoted = 0; - /* fall through */ - case ' ': - case CR: - case LF: - arg = ngx_array_push(&s->args); - if (arg == NULL) { - return NGX_ERROR; - } - arg->len = p - s->arg_start; - arg->data = s->arg_start; - s->arg_start = NULL; - - switch (ch) { - case '"': - case ' ': - state = sw_spaces_before_argument; - break; - case CR: - state = sw_almost_done; - break; - case LF: - goto done; - } - break; - case '\\': - if (s->quoted) { - s->backslash = 1; - state = sw_backslash; - } - break; - } - break; - - case sw_backslash: - switch (ch) { - case CR: - case LF: - goto invalid; - default: - state = sw_argument; - } - break; - - case sw_literal: - if (ch >= '0' && ch <= '9') { - s->literal_len = s->literal_len * 10 + (ch - '0'); - break; - } - if (ch == '}') { - state = sw_start_literal_argument; - break; - } - if (ch == '+') { - state = sw_no_sync_literal_argument; - break; - } - goto invalid; - - case sw_no_sync_literal_argument: - if (ch == '}') { - s->no_sync_literal = 1; - state = sw_start_literal_argument; - break; - } - goto invalid; - - case sw_start_literal_argument: - switch (ch) { - case CR: - break; - case LF: - s->buffer->pos = p + 1; - s->arg_start = p + 1; - if (s->no_sync_literal == 0) { - s->state = sw_literal_argument; - return NGX_IMAP_NEXT; - } - state = sw_literal_argument; - s->no_sync_literal = 0; - break; - default: - goto invalid; - } - break; - - case sw_literal_argument: - if (s->literal_len && --s->literal_len) { - break; - } - - arg = ngx_array_push(&s->args); - if (arg == NULL) { - return NGX_ERROR; - } - arg->len = p + 1 - s->arg_start; - arg->data = s->arg_start; - s->arg_start = NULL; - state = sw_end_literal_argument; - - break; - - case sw_end_literal_argument: - switch (ch) { - case '{': - if (s->args.nelts <= 2) { - state = sw_literal; - break; - } - goto invalid; - case CR: - state = sw_almost_done; - break; - case LF: - goto done; - default: - state = sw_spaces_before_argument; - break; - } - break; - - case sw_almost_done: - switch (ch) { - case LF: - goto done; - default: - goto invalid; - } - } - } - - s->buffer->pos = p; - s->state = state; - - return NGX_AGAIN; - -done: - - s->buffer->pos = p + 1; - - if (s->arg_start) { - arg = ngx_array_push(&s->args); - if (arg == NULL) { - return NGX_ERROR; - } - arg->len = s->arg_end - s->arg_start; - arg->data = s->arg_start; - - s->arg_start = NULL; - s->cmd_start = NULL; - s->quoted = 0; - s->no_sync_literal = 0; - s->literal_len = 0; - } - - s->state = (s->command != NGX_IMAP_AUTHENTICATE) ? sw_start : sw_argument; - - return NGX_OK; - -invalid: - - s->state = sw_start; - s->quoted = 0; - s->no_sync_literal = 0; - s->literal_len = 0; - - return NGX_MAIL_PARSE_INVALID_COMMAND; -} - - -ngx_int_t -ngx_mail_smtp_parse_command(ngx_mail_session_t *s) -{ - u_char ch, *p, *c, c0, c1, c2, c3; - ngx_str_t *arg; - enum { - sw_start = 0, - sw_command, - sw_invalid, - sw_spaces_before_argument, - sw_argument, - sw_almost_done - } state; - - state = s->state; - - for (p = s->buffer->pos; p < s->buffer->last; p++) { - ch = *p; - - switch (state) { - - /* SMTP command */ - case sw_start: - s->cmd_start = p; - state = sw_command; - - /* fall through */ - - case sw_command: - if (ch == ' ' || ch == CR || ch == LF) { - c = s->cmd_start; - - if (p - c == 4) { - - c0 = ngx_toupper(c[0]); - c1 = ngx_toupper(c[1]); - c2 = ngx_toupper(c[2]); - c3 = ngx_toupper(c[3]); - - if (c0 == 'H' && c1 == 'E' && c2 == 'L' && c3 == 'O') - { - s->command = NGX_SMTP_HELO; - - } else if (c0 == 'E' && c1 == 'H' && c2 == 'L' && c3 == 'O') - { - s->command = NGX_SMTP_EHLO; - - } else if (c0 == 'Q' && c1 == 'U' && c2 == 'I' && c3 == 'T') - { - s->command = NGX_SMTP_QUIT; - - } else if (c0 == 'A' && c1 == 'U' && c2 == 'T' && c3 == 'H') - { - s->command = NGX_SMTP_AUTH; - - } else if (c0 == 'N' && c1 == 'O' && c2 == 'O' && c3 == 'P') - { - s->command = NGX_SMTP_NOOP; - - } else if (c0 == 'M' && c1 == 'A' && c2 == 'I' && c3 == 'L') - { - s->command = NGX_SMTP_MAIL; - - } else if (c0 == 'R' && c1 == 'S' && c2 == 'E' && c3 == 'T') - { - s->command = NGX_SMTP_RSET; - - } else if (c0 == 'R' && c1 == 'C' && c2 == 'P' && c3 == 'T') - { - s->command = NGX_SMTP_RCPT; - - } else if (c0 == 'V' && c1 == 'R' && c2 == 'F' && c3 == 'Y') - { - s->command = NGX_SMTP_VRFY; - - } else if (c0 == 'E' && c1 == 'X' && c2 == 'P' && c3 == 'N') - { - s->command = NGX_SMTP_EXPN; - - } else if (c0 == 'H' && c1 == 'E' && c2 == 'L' && c3 == 'P') - { - s->command = NGX_SMTP_HELP; - - } else { - goto invalid; - } -#if (NGX_MAIL_SSL) - } else if (p - c == 8) { - - if ((c[0] == 'S'|| c[0] == 's') - && (c[1] == 'T'|| c[1] == 't') - && (c[2] == 'A'|| c[2] == 'a') - && (c[3] == 'R'|| c[3] == 'r') - && (c[4] == 'T'|| c[4] == 't') - && (c[5] == 'T'|| c[5] == 't') - && (c[6] == 'L'|| c[6] == 'l') - && (c[7] == 'S'|| c[7] == 's')) - { - s->command = NGX_SMTP_STARTTLS; - - } else { - goto invalid; - } -#endif - } else { - goto invalid; - } - - s->cmd.data = s->cmd_start; - s->cmd.len = p - s->cmd_start; - - switch (ch) { - case ' ': - state = sw_spaces_before_argument; - break; - case CR: - state = sw_almost_done; - break; - case LF: - goto done; - } - break; - } - - if ((ch < 'A' || ch > 'Z') && (ch < 'a' || ch > 'z')) { - goto invalid; - } - - break; - - case sw_invalid: - goto invalid; - - case sw_spaces_before_argument: - switch (ch) { - case ' ': - break; - case CR: - state = sw_almost_done; - s->arg_end = p; - break; - case LF: - s->arg_end = p; - goto done; - default: - if (s->args.nelts <= 10) { - state = sw_argument; - s->arg_start = p; - break; - } - goto invalid; - } - break; - - case sw_argument: - switch (ch) { - case ' ': - case CR: - case LF: - arg = ngx_array_push(&s->args); - if (arg == NULL) { - return NGX_ERROR; - } - arg->len = p - s->arg_start; - arg->data = s->arg_start; - s->arg_start = NULL; - - switch (ch) { - case ' ': - state = sw_spaces_before_argument; - break; - case CR: - state = sw_almost_done; - break; - case LF: - goto done; - } - break; - - default: - break; - } - break; - - case sw_almost_done: - switch (ch) { - case LF: - goto done; - default: - goto invalid; - } - } - } - - s->buffer->pos = p; - s->state = state; - - return NGX_AGAIN; - -done: - - s->buffer->pos = p + 1; - - if (s->arg_start) { - arg = ngx_array_push(&s->args); - if (arg == NULL) { - return NGX_ERROR; - } - arg->len = s->arg_end - s->arg_start; - arg->data = s->arg_start; - s->arg_start = NULL; - } - - s->state = (s->command != NGX_SMTP_AUTH) ? sw_start : sw_argument; - - return NGX_OK; - -invalid: - - s->state = sw_invalid; - s->arg_start = NULL; - - /* skip invalid command till LF */ - - for (p = s->buffer->pos; p < s->buffer->last; p++) { - if (*p == LF) { - s->state = sw_start; - p++; - break; - } - } - - s->buffer->pos = p; - - return NGX_MAIL_PARSE_INVALID_COMMAND; -} - - -ngx_int_t -ngx_mail_auth_parse(ngx_mail_session_t *s, ngx_connection_t *c) -{ - ngx_str_t *arg; - -#if (NGX_MAIL_SSL) - if (ngx_mail_starttls_only(s, c)) { - return NGX_MAIL_PARSE_INVALID_COMMAND; - } -#endif - - if (s->args.nelts == 0) { - return NGX_MAIL_PARSE_INVALID_COMMAND; - } - - arg = s->args.elts; - - if (arg[0].len == 5) { - - if (ngx_strncasecmp(arg[0].data, (u_char *) "LOGIN", 5) == 0) { - - if (s->args.nelts == 1) { - return NGX_MAIL_AUTH_LOGIN; - } - - if (s->args.nelts == 2) { - return NGX_MAIL_AUTH_LOGIN_USERNAME; - } - - return NGX_MAIL_PARSE_INVALID_COMMAND; - } - - if (ngx_strncasecmp(arg[0].data, (u_char *) "PLAIN", 5) == 0) { - - if (s->args.nelts == 1) { - return NGX_MAIL_AUTH_PLAIN; - } - - if (s->args.nelts == 2) { - return ngx_mail_auth_plain(s, c, 1); - } - } - - return NGX_MAIL_PARSE_INVALID_COMMAND; - } - - if (arg[0].len == 8) { - - if (ngx_strncasecmp(arg[0].data, (u_char *) "CRAM-MD5", 8) == 0) { - - if (s->args.nelts != 1) { - return NGX_MAIL_PARSE_INVALID_COMMAND; - } - - return NGX_MAIL_AUTH_CRAM_MD5; - } - - if (ngx_strncasecmp(arg[0].data, (u_char *) "EXTERNAL", 8) == 0) { - - if (s->args.nelts == 1) { - return NGX_MAIL_AUTH_EXTERNAL; - } - - if (s->args.nelts == 2) { - return ngx_mail_auth_external(s, c, 1); - } - } - - return NGX_MAIL_PARSE_INVALID_COMMAND; - } - - return NGX_MAIL_PARSE_INVALID_COMMAND; -} diff --git a/nginx/src/mail/ngx_mail_pop3_handler.c b/nginx/src/mail/ngx_mail_pop3_handler.c deleted file mode 100644 index 9310c27..0000000 --- a/nginx/src/mail/ngx_mail_pop3_handler.c +++ /dev/null @@ -1,515 +0,0 @@ - -/* - * Copyright (C) Igor Sysoev - * Copyright (C) Nginx, Inc. - */ - - -#include <ngx_config.h> -#include <ngx_core.h> -#include <ngx_event.h> -#include <ngx_mail.h> -#include <ngx_mail_pop3_module.h> - - -static ngx_int_t ngx_mail_pop3_user(ngx_mail_session_t *s, ngx_connection_t *c); -static ngx_int_t ngx_mail_pop3_pass(ngx_mail_session_t *s, ngx_connection_t *c); -static ngx_int_t ngx_mail_pop3_capa(ngx_mail_session_t *s, ngx_connection_t *c, - ngx_int_t stls); -static ngx_int_t ngx_mail_pop3_stls(ngx_mail_session_t *s, ngx_connection_t *c); -static ngx_int_t ngx_mail_pop3_apop(ngx_mail_session_t *s, ngx_connection_t *c); -static ngx_int_t ngx_mail_pop3_auth(ngx_mail_session_t *s, ngx_connection_t *c); - - -static u_char pop3_greeting[] = "+OK POP3 ready" CRLF; -static u_char pop3_ok[] = "+OK" CRLF; -static u_char pop3_next[] = "+ " CRLF; -static u_char pop3_username[] = "+ VXNlcm5hbWU6" CRLF; -static u_char pop3_password[] = "+ UGFzc3dvcmQ6" CRLF; -static u_char pop3_invalid_command[] = "-ERR invalid command" CRLF; - - -void -ngx_mail_pop3_init_session(ngx_mail_session_t *s, ngx_connection_t *c) -{ - u_char *p; - ngx_mail_core_srv_conf_t *cscf; - ngx_mail_pop3_srv_conf_t *pscf; - - pscf = ngx_mail_get_module_srv_conf(s, ngx_mail_pop3_module); - cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); - - if (pscf->auth_methods - & (NGX_MAIL_AUTH_APOP_ENABLED|NGX_MAIL_AUTH_CRAM_MD5_ENABLED)) - { - if (ngx_mail_salt(s, c, cscf) != NGX_OK) { - ngx_mail_session_internal_server_error(s); - return; - } - - s->out.data = ngx_pnalloc(c->pool, sizeof(pop3_greeting) + s->salt.len); - if (s->out.data == NULL) { - ngx_mail_session_internal_server_error(s); - return; - } - - p = ngx_cpymem(s->out.data, pop3_greeting, sizeof(pop3_greeting) - 3); - *p++ = ' '; - p = ngx_cpymem(p, s->salt.data, s->salt.len); - - s->out.len = p - s->out.data; - - } else { - ngx_str_set(&s->out, pop3_greeting); - } - - c->read->handler = ngx_mail_pop3_init_protocol; - - ngx_add_timer(c->read, cscf->timeout); - - if (ngx_handle_read_event(c->read, 0) != NGX_OK) { - ngx_mail_close_connection(c); - } - - ngx_mail_send(c->write); -} - - -void -ngx_mail_pop3_init_protocol(ngx_event_t *rev) -{ - ngx_connection_t *c; - ngx_mail_session_t *s; - - c = rev->data; - - c->log->action = "in auth state"; - - if (rev->timedout) { - ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out"); - c->timedout = 1; - ngx_mail_close_connection(c); - return; - } - - s = c->data; - - if (s->buffer == NULL) { - if (ngx_array_init(&s->args, c->pool, 2, sizeof(ngx_str_t)) - == NGX_ERROR) - { - ngx_mail_session_internal_server_error(s); - return; - } - - s->buffer = ngx_create_temp_buf(c->pool, 128); - if (s->buffer == NULL) { - ngx_mail_session_internal_server_error(s); - return; - } - } - - s->mail_state = ngx_pop3_start; - c->read->handler = ngx_mail_pop3_auth_state; - - ngx_mail_pop3_auth_state(rev); -} - - -void -ngx_mail_pop3_auth_state(ngx_event_t *rev) -{ - ngx_int_t rc; - ngx_connection_t *c; - ngx_mail_session_t *s; - - c = rev->data; - s = c->data; - - ngx_log_debug0(NGX_LOG_DEBUG_MAIL, c->log, 0, "pop3 auth state"); - - if (rev->timedout) { - ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out"); - c->timedout = 1; - ngx_mail_close_connection(c); - return; - } - - if (s->out.len) { - ngx_log_debug0(NGX_LOG_DEBUG_MAIL, c->log, 0, "pop3 send handler busy"); - s->blocked = 1; - return; - } - - s->blocked = 0; - - rc = ngx_mail_read_command(s, c); - - if (rc == NGX_AGAIN || rc == NGX_ERROR) { - return; - } - - ngx_str_set(&s->out, pop3_ok); - - if (rc == NGX_OK) { - switch (s->mail_state) { - - case ngx_pop3_start: - - switch (s->command) { - - case NGX_POP3_USER: - rc = ngx_mail_pop3_user(s, c); - break; - - case NGX_POP3_CAPA: - rc = ngx_mail_pop3_capa(s, c, 1); - break; - - case NGX_POP3_APOP: - rc = ngx_mail_pop3_apop(s, c); - break; - - case NGX_POP3_AUTH: - rc = ngx_mail_pop3_auth(s, c); - break; - - case NGX_POP3_QUIT: - s->quit = 1; - break; - - case NGX_POP3_NOOP: - break; - - case NGX_POP3_STLS: - rc = ngx_mail_pop3_stls(s, c); - break; - - default: - rc = NGX_MAIL_PARSE_INVALID_COMMAND; - break; - } - - break; - - case ngx_pop3_user: - - switch (s->command) { - - case NGX_POP3_PASS: - rc = ngx_mail_pop3_pass(s, c); - break; - - case NGX_POP3_CAPA: - rc = ngx_mail_pop3_capa(s, c, 0); - break; - - case NGX_POP3_QUIT: - s->quit = 1; - break; - - case NGX_POP3_NOOP: - break; - - default: - rc = NGX_MAIL_PARSE_INVALID_COMMAND; - break; - } - - break; - - /* suppress warnings */ - case ngx_pop3_passwd: - break; - - case ngx_pop3_auth_login_username: - rc = ngx_mail_auth_login_username(s, c, 0); - - ngx_str_set(&s->out, pop3_password); - s->mail_state = ngx_pop3_auth_login_password; - break; - - case ngx_pop3_auth_login_password: - rc = ngx_mail_auth_login_password(s, c); - break; - - case ngx_pop3_auth_plain: - rc = ngx_mail_auth_plain(s, c, 0); - break; - - case ngx_pop3_auth_cram_md5: - rc = ngx_mail_auth_cram_md5(s, c); - break; - - case ngx_pop3_auth_external: - rc = ngx_mail_auth_external(s, c, 0); - break; - } - } - - switch (rc) { - - case NGX_DONE: - ngx_mail_auth(s, c); - return; - - case NGX_ERROR: - ngx_mail_session_internal_server_error(s); - return; - - case NGX_MAIL_PARSE_INVALID_COMMAND: - s->mail_state = ngx_pop3_start; - s->state = 0; - - ngx_str_set(&s->out, pop3_invalid_command); - - /* fall through */ - - case NGX_OK: - - s->args.nelts = 0; - s->buffer->pos = s->buffer->start; - s->buffer->last = s->buffer->start; - - if (s->state) { - s->arg_start = s->buffer->start; - } - - ngx_mail_send(c->write); - } -} - -static ngx_int_t -ngx_mail_pop3_user(ngx_mail_session_t *s, ngx_connection_t *c) -{ - ngx_str_t *arg; - -#if (NGX_MAIL_SSL) - if (ngx_mail_starttls_only(s, c)) { - return NGX_MAIL_PARSE_INVALID_COMMAND; - } -#endif - - if (s->args.nelts != 1) { - return NGX_MAIL_PARSE_INVALID_COMMAND; - } - - arg = s->args.elts; - s->login.len = arg[0].len; - s->login.data = ngx_pnalloc(c->pool, s->login.len); - if (s->login.data == NULL) { - return NGX_ERROR; - } - - ngx_memcpy(s->login.data, arg[0].data, s->login.len); - - ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, - "pop3 login: \"%V\"", &s->login); - - s->mail_state = ngx_pop3_user; - - return NGX_OK; -} - - -static ngx_int_t -ngx_mail_pop3_pass(ngx_mail_session_t *s, ngx_connection_t *c) -{ - ngx_str_t *arg; - - if (s->args.nelts != 1) { - return NGX_MAIL_PARSE_INVALID_COMMAND; - } - - arg = s->args.elts; - s->passwd.len = arg[0].len; - s->passwd.data = ngx_pnalloc(c->pool, s->passwd.len); - if (s->passwd.data == NULL) { - return NGX_ERROR; - } - - ngx_memcpy(s->passwd.data, arg[0].data, s->passwd.len); - -#if (NGX_DEBUG_MAIL_PASSWD) - ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, - "pop3 passwd: \"%V\"", &s->passwd); -#endif - - return NGX_DONE; -} - - -static ngx_int_t -ngx_mail_pop3_capa(ngx_mail_session_t *s, ngx_connection_t *c, ngx_int_t stls) -{ - ngx_mail_pop3_srv_conf_t *pscf; - - pscf = ngx_mail_get_module_srv_conf(s, ngx_mail_pop3_module); - -#if (NGX_MAIL_SSL) - - if (stls && c->ssl == NULL) { - ngx_mail_ssl_conf_t *sslcf; - - sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); - - if (sslcf->starttls == NGX_MAIL_STARTTLS_ON) { - s->out = pscf->starttls_capability; - return NGX_OK; - } - - if (sslcf->starttls == NGX_MAIL_STARTTLS_ONLY) { - s->out = pscf->starttls_only_capability; - return NGX_OK; - } - } - -#endif - - s->out = pscf->capability; - return NGX_OK; -} - - -static ngx_int_t -ngx_mail_pop3_stls(ngx_mail_session_t *s, ngx_connection_t *c) -{ -#if (NGX_MAIL_SSL) - ngx_mail_ssl_conf_t *sslcf; - - if (c->ssl == NULL) { - sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); - if (sslcf->starttls) { - c->read->handler = ngx_mail_starttls_handler; - return NGX_OK; - } - } - -#endif - - return NGX_MAIL_PARSE_INVALID_COMMAND; -} - - -static ngx_int_t -ngx_mail_pop3_apop(ngx_mail_session_t *s, ngx_connection_t *c) -{ - ngx_str_t *arg; - ngx_mail_pop3_srv_conf_t *pscf; - -#if (NGX_MAIL_SSL) - if (ngx_mail_starttls_only(s, c)) { - return NGX_MAIL_PARSE_INVALID_COMMAND; - } -#endif - - if (s->args.nelts != 2) { - return NGX_MAIL_PARSE_INVALID_COMMAND; - } - - pscf = ngx_mail_get_module_srv_conf(s, ngx_mail_pop3_module); - - if (!(pscf->auth_methods & NGX_MAIL_AUTH_APOP_ENABLED)) { - return NGX_MAIL_PARSE_INVALID_COMMAND; - } - - arg = s->args.elts; - - s->login.len = arg[0].len; - s->login.data = ngx_pnalloc(c->pool, s->login.len); - if (s->login.data == NULL) { - return NGX_ERROR; - } - - ngx_memcpy(s->login.data, arg[0].data, s->login.len); - - s->passwd.len = arg[1].len; - s->passwd.data = ngx_pnalloc(c->pool, s->passwd.len); - if (s->passwd.data == NULL) { - return NGX_ERROR; - } - - ngx_memcpy(s->passwd.data, arg[1].data, s->passwd.len); - - ngx_log_debug2(NGX_LOG_DEBUG_MAIL, c->log, 0, - "pop3 apop: \"%V\" \"%V\"", &s->login, &s->passwd); - - s->auth_method = NGX_MAIL_AUTH_APOP; - - return NGX_DONE; -} - - -static ngx_int_t -ngx_mail_pop3_auth(ngx_mail_session_t *s, ngx_connection_t *c) -{ - ngx_int_t rc; - ngx_mail_pop3_srv_conf_t *pscf; - -#if (NGX_MAIL_SSL) - if (ngx_mail_starttls_only(s, c)) { - return NGX_MAIL_PARSE_INVALID_COMMAND; - } -#endif - - pscf = ngx_mail_get_module_srv_conf(s, ngx_mail_pop3_module); - - if (s->args.nelts == 0) { - s->out = pscf->auth_capability; - s->state = 0; - - return NGX_OK; - } - - rc = ngx_mail_auth_parse(s, c); - - switch (rc) { - - case NGX_MAIL_AUTH_LOGIN: - - ngx_str_set(&s->out, pop3_username); - s->mail_state = ngx_pop3_auth_login_username; - - return NGX_OK; - - case NGX_MAIL_AUTH_LOGIN_USERNAME: - - ngx_str_set(&s->out, pop3_password); - s->mail_state = ngx_pop3_auth_login_password; - - return ngx_mail_auth_login_username(s, c, 1); - - case NGX_MAIL_AUTH_PLAIN: - - ngx_str_set(&s->out, pop3_next); - s->mail_state = ngx_pop3_auth_plain; - - return NGX_OK; - - case NGX_MAIL_AUTH_CRAM_MD5: - - if (!(pscf->auth_methods & NGX_MAIL_AUTH_CRAM_MD5_ENABLED)) { - return NGX_MAIL_PARSE_INVALID_COMMAND; - } - - if (ngx_mail_auth_cram_md5_salt(s, c, "+ ", 2) == NGX_OK) { - s->mail_state = ngx_pop3_auth_cram_md5; - return NGX_OK; - } - - return NGX_ERROR; - - case NGX_MAIL_AUTH_EXTERNAL: - - if (!(pscf->auth_methods & NGX_MAIL_AUTH_EXTERNAL_ENABLED)) { - return NGX_MAIL_PARSE_INVALID_COMMAND; - } - - ngx_str_set(&s->out, pop3_username); - s->mail_state = ngx_pop3_auth_external; - - return NGX_OK; - } - - return rc; -} diff --git a/nginx/src/mail/ngx_mail_pop3_module.c b/nginx/src/mail/ngx_mail_pop3_module.c deleted file mode 100644 index a673070..0000000 --- a/nginx/src/mail/ngx_mail_pop3_module.c +++ /dev/null @@ -1,322 +0,0 @@ - -/* - * Copyright (C) Igor Sysoev - * Copyright (C) Nginx, Inc. - */ - - -#include <ngx_config.h> -#include <ngx_core.h> -#include <ngx_event.h> -#include <ngx_mail.h> -#include <ngx_mail_pop3_module.h> - - -static void *ngx_mail_pop3_create_srv_conf(ngx_conf_t *cf); -static char *ngx_mail_pop3_merge_srv_conf(ngx_conf_t *cf, void *parent, - void *child); - - -static ngx_str_t ngx_mail_pop3_default_capabilities[] = { - ngx_string("TOP"), - ngx_string("USER"), - ngx_string("UIDL"), - ngx_null_string -}; - - -static ngx_conf_bitmask_t ngx_mail_pop3_auth_methods[] = { - { ngx_string("plain"), NGX_MAIL_AUTH_PLAIN_ENABLED }, - { ngx_string("apop"), NGX_MAIL_AUTH_APOP_ENABLED }, - { ngx_string("cram-md5"), NGX_MAIL_AUTH_CRAM_MD5_ENABLED }, - { ngx_string("external"), NGX_MAIL_AUTH_EXTERNAL_ENABLED }, - { ngx_null_string, 0 } -}; - - -static ngx_str_t ngx_mail_pop3_auth_methods_names[] = { - ngx_string("PLAIN"), - ngx_string("LOGIN"), - ngx_null_string, /* APOP */ - ngx_string("CRAM-MD5"), - ngx_string("EXTERNAL"), - ngx_null_string /* NONE */ -}; - - -static ngx_mail_protocol_t ngx_mail_pop3_protocol = { - ngx_string("pop3"), - { 110, 995, 0, 0 }, - NGX_MAIL_POP3_PROTOCOL, - - ngx_mail_pop3_init_session, - ngx_mail_pop3_init_protocol, - ngx_mail_pop3_parse_command, - ngx_mail_pop3_auth_state, - - ngx_string("-ERR internal server error" CRLF), - ngx_string("-ERR SSL certificate error" CRLF), - ngx_string("-ERR No required SSL certificate" CRLF) -}; - - -static ngx_command_t ngx_mail_pop3_commands[] = { - - { ngx_string("pop3_capabilities"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_1MORE, - ngx_mail_capabilities, - NGX_MAIL_SRV_CONF_OFFSET, - offsetof(ngx_mail_pop3_srv_conf_t, capabilities), - NULL }, - - { ngx_string("pop3_auth"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_1MORE, - ngx_conf_set_bitmask_slot, - NGX_MAIL_SRV_CONF_OFFSET, - offsetof(ngx_mail_pop3_srv_conf_t, auth_methods), - &ngx_mail_pop3_auth_methods }, - - ngx_null_command -}; - - -static ngx_mail_module_t ngx_mail_pop3_module_ctx = { - &ngx_mail_pop3_protocol, /* protocol */ - - NULL, /* create main configuration */ - NULL, /* init main configuration */ - - ngx_mail_pop3_create_srv_conf, /* create server configuration */ - ngx_mail_pop3_merge_srv_conf /* merge server configuration */ -}; - - -ngx_module_t ngx_mail_pop3_module = { - NGX_MODULE_V1, - &ngx_mail_pop3_module_ctx, /* module context */ - ngx_mail_pop3_commands, /* module directives */ - NGX_MAIL_MODULE, /* module type */ - NULL, /* init master */ - NULL, /* init module */ - NULL, /* init process */ - NULL, /* init thread */ - NULL, /* exit thread */ - NULL, /* exit process */ - NULL, /* exit master */ - NGX_MODULE_V1_PADDING -}; - - -static void * -ngx_mail_pop3_create_srv_conf(ngx_conf_t *cf) -{ - ngx_mail_pop3_srv_conf_t *pscf; - - pscf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_pop3_srv_conf_t)); - if (pscf == NULL) { - return NULL; - } - - if (ngx_array_init(&pscf->capabilities, cf->pool, 4, sizeof(ngx_str_t)) - != NGX_OK) - { - return NULL; - } - - return pscf; -} - - -static char * -ngx_mail_pop3_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) -{ - ngx_mail_pop3_srv_conf_t *prev = parent; - ngx_mail_pop3_srv_conf_t *conf = child; - - u_char *p; - size_t size, stls_only_size; - ngx_str_t *c, *d; - ngx_uint_t i, m; - - ngx_conf_merge_bitmask_value(conf->auth_methods, - prev->auth_methods, - (NGX_CONF_BITMASK_SET - |NGX_MAIL_AUTH_PLAIN_ENABLED)); - - if (conf->auth_methods & NGX_MAIL_AUTH_PLAIN_ENABLED) { - conf->auth_methods |= NGX_MAIL_AUTH_LOGIN_ENABLED; - } - - if (conf->capabilities.nelts == 0) { - conf->capabilities = prev->capabilities; - } - - if (conf->capabilities.nelts == 0) { - - for (d = ngx_mail_pop3_default_capabilities; d->len; d++) { - c = ngx_array_push(&conf->capabilities); - if (c == NULL) { - return NGX_CONF_ERROR; - } - - *c = *d; - } - } - - size = sizeof("+OK Capability list follows" CRLF) - 1 - + sizeof("." CRLF) - 1; - - stls_only_size = size + sizeof("STLS" CRLF) - 1; - - c = conf->capabilities.elts; - for (i = 0; i < conf->capabilities.nelts; i++) { - size += c[i].len + sizeof(CRLF) - 1; - - if (ngx_strcasecmp(c[i].data, (u_char *) "USER") == 0) { - continue; - } - - stls_only_size += c[i].len + sizeof(CRLF) - 1; - } - - size += sizeof("SASL") - 1 + sizeof(CRLF) - 1; - - for (m = NGX_MAIL_AUTH_PLAIN_ENABLED, i = 0; - m <= NGX_MAIL_AUTH_EXTERNAL_ENABLED; - m <<= 1, i++) - { - if (ngx_mail_pop3_auth_methods_names[i].len == 0) { - continue; - } - - if (m & conf->auth_methods) { - size += 1 + ngx_mail_pop3_auth_methods_names[i].len; - } - } - - p = ngx_pnalloc(cf->pool, size); - if (p == NULL) { - return NGX_CONF_ERROR; - } - - conf->capability.len = size; - conf->capability.data = p; - - p = ngx_cpymem(p, "+OK Capability list follows" CRLF, - sizeof("+OK Capability list follows" CRLF) - 1); - - for (i = 0; i < conf->capabilities.nelts; i++) { - p = ngx_cpymem(p, c[i].data, c[i].len); - *p++ = CR; *p++ = LF; - } - - p = ngx_cpymem(p, "SASL", sizeof("SASL") - 1); - - for (m = NGX_MAIL_AUTH_PLAIN_ENABLED, i = 0; - m <= NGX_MAIL_AUTH_EXTERNAL_ENABLED; - m <<= 1, i++) - { - if (ngx_mail_pop3_auth_methods_names[i].len == 0) { - continue; - } - - if (m & conf->auth_methods) { - *p++ = ' '; - p = ngx_cpymem(p, ngx_mail_pop3_auth_methods_names[i].data, - ngx_mail_pop3_auth_methods_names[i].len); - } - } - - *p++ = CR; *p++ = LF; - - *p++ = '.'; *p++ = CR; *p = LF; - - - size += sizeof("STLS" CRLF) - 1; - - p = ngx_pnalloc(cf->pool, size); - if (p == NULL) { - return NGX_CONF_ERROR; - } - - conf->starttls_capability.len = size; - conf->starttls_capability.data = p; - - p = ngx_cpymem(p, conf->capability.data, - conf->capability.len - (sizeof("." CRLF) - 1)); - - p = ngx_cpymem(p, "STLS" CRLF, sizeof("STLS" CRLF) - 1); - *p++ = '.'; *p++ = CR; *p = LF; - - - size = sizeof("+OK methods supported:" CRLF) - 1 - + sizeof("." CRLF) - 1; - - for (m = NGX_MAIL_AUTH_PLAIN_ENABLED, i = 0; - m <= NGX_MAIL_AUTH_EXTERNAL_ENABLED; - m <<= 1, i++) - { - if (ngx_mail_pop3_auth_methods_names[i].len == 0) { - continue; - } - - if (m & conf->auth_methods) { - size += ngx_mail_pop3_auth_methods_names[i].len - + sizeof(CRLF) - 1; - } - } - - p = ngx_pnalloc(cf->pool, size); - if (p == NULL) { - return NGX_CONF_ERROR; - } - - conf->auth_capability.data = p; - conf->auth_capability.len = size; - - p = ngx_cpymem(p, "+OK methods supported:" CRLF, - sizeof("+OK methods supported:" CRLF) - 1); - - for (m = NGX_MAIL_AUTH_PLAIN_ENABLED, i = 0; - m <= NGX_MAIL_AUTH_EXTERNAL_ENABLED; - m <<= 1, i++) - { - if (ngx_mail_pop3_auth_methods_names[i].len == 0) { - continue; - } - - if (m & conf->auth_methods) { - p = ngx_cpymem(p, ngx_mail_pop3_auth_methods_names[i].data, - ngx_mail_pop3_auth_methods_names[i].len); - *p++ = CR; *p++ = LF; - } - } - - *p++ = '.'; *p++ = CR; *p = LF; - - - p = ngx_pnalloc(cf->pool, stls_only_size); - if (p == NULL) { - return NGX_CONF_ERROR; - } - - conf->starttls_only_capability.len = stls_only_size; - conf->starttls_only_capability.data = p; - - p = ngx_cpymem(p, "+OK Capability list follows" CRLF, - sizeof("+OK Capability list follows" CRLF) - 1); - - for (i = 0; i < conf->capabilities.nelts; i++) { - if (ngx_strcasecmp(c[i].data, (u_char *) "USER") == 0) { - continue; - } - - p = ngx_cpymem(p, c[i].data, c[i].len); - *p++ = CR; *p++ = LF; - } - - p = ngx_cpymem(p, "STLS" CRLF, sizeof("STLS" CRLF) - 1); - *p++ = '.'; *p++ = CR; *p = LF; - - return NGX_CONF_OK; -} diff --git a/nginx/src/mail/ngx_mail_pop3_module.h b/nginx/src/mail/ngx_mail_pop3_module.h deleted file mode 100644 index 86947a7..0000000 --- a/nginx/src/mail/ngx_mail_pop3_module.h +++ /dev/null @@ -1,38 +0,0 @@ - -/* - * Copyright (C) Igor Sysoev - * Copyright (C) Nginx, Inc. - */ - - -#ifndef _NGX_MAIL_POP3_MODULE_H_INCLUDED_ -#define _NGX_MAIL_POP3_MODULE_H_INCLUDED_ - - -#include <ngx_config.h> -#include <ngx_core.h> -#include <ngx_mail.h> - - -typedef struct { - ngx_str_t capability; - ngx_str_t starttls_capability; - ngx_str_t starttls_only_capability; - ngx_str_t auth_capability; - - ngx_uint_t auth_methods; - - ngx_array_t capabilities; -} ngx_mail_pop3_srv_conf_t; - - -void ngx_mail_pop3_init_session(ngx_mail_session_t *s, ngx_connection_t *c); -void ngx_mail_pop3_init_protocol(ngx_event_t *rev); -void ngx_mail_pop3_auth_state(ngx_event_t *rev); -ngx_int_t ngx_mail_pop3_parse_command(ngx_mail_session_t *s); - - -extern ngx_module_t ngx_mail_pop3_module; - - -#endif /* _NGX_MAIL_POP3_MODULE_H_INCLUDED_ */ diff --git a/nginx/src/mail/ngx_mail_proxy_module.c b/nginx/src/mail/ngx_mail_proxy_module.c deleted file mode 100644 index 1c86e54..0000000 --- a/nginx/src/mail/ngx_mail_proxy_module.c +++ /dev/null @@ -1,1126 +0,0 @@ - -/* - * Copyright (C) Igor Sysoev - * Copyright (C) Nginx, Inc. - */ - - -#include <ngx_config.h> -#include <ngx_core.h> -#include <ngx_event.h> -#include <ngx_event_connect.h> -#include <ngx_mail.h> - - -typedef struct { - ngx_flag_t enable; - ngx_flag_t pass_error_message; - ngx_flag_t xclient; - size_t buffer_size; - ngx_msec_t timeout; -} ngx_mail_proxy_conf_t; - - -static void ngx_mail_proxy_block_read(ngx_event_t *rev); -static void ngx_mail_proxy_pop3_handler(ngx_event_t *rev); -static void ngx_mail_proxy_imap_handler(ngx_event_t *rev); -static void ngx_mail_proxy_smtp_handler(ngx_event_t *rev); -static void ngx_mail_proxy_dummy_handler(ngx_event_t *ev); -static ngx_int_t ngx_mail_proxy_read_response(ngx_mail_session_t *s, - ngx_uint_t state); -static void ngx_mail_proxy_handler(ngx_event_t *ev); -static void ngx_mail_proxy_upstream_error(ngx_mail_session_t *s); -static void ngx_mail_proxy_internal_server_error(ngx_mail_session_t *s); -static void ngx_mail_proxy_close_session(ngx_mail_session_t *s); -static void *ngx_mail_proxy_create_conf(ngx_conf_t *cf); -static char *ngx_mail_proxy_merge_conf(ngx_conf_t *cf, void *parent, - void *child); - - -static ngx_command_t ngx_mail_proxy_commands[] = { - - { ngx_string("proxy"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_FLAG, - ngx_conf_set_flag_slot, - NGX_MAIL_SRV_CONF_OFFSET, - offsetof(ngx_mail_proxy_conf_t, enable), - NULL }, - - { ngx_string("proxy_buffer"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, - ngx_conf_set_size_slot, - NGX_MAIL_SRV_CONF_OFFSET, - offsetof(ngx_mail_proxy_conf_t, buffer_size), - NULL }, - - { ngx_string("proxy_timeout"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, - ngx_conf_set_msec_slot, - NGX_MAIL_SRV_CONF_OFFSET, - offsetof(ngx_mail_proxy_conf_t, timeout), - NULL }, - - { ngx_string("proxy_pass_error_message"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_FLAG, - ngx_conf_set_flag_slot, - NGX_MAIL_SRV_CONF_OFFSET, - offsetof(ngx_mail_proxy_conf_t, pass_error_message), - NULL }, - - { ngx_string("xclient"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_FLAG, - ngx_conf_set_flag_slot, - NGX_MAIL_SRV_CONF_OFFSET, - offsetof(ngx_mail_proxy_conf_t, xclient), - NULL }, - - ngx_null_command -}; - - -static ngx_mail_module_t ngx_mail_proxy_module_ctx = { - NULL, /* protocol */ - - NULL, /* create main configuration */ - NULL, /* init main configuration */ - - ngx_mail_proxy_create_conf, /* create server configuration */ - ngx_mail_proxy_merge_conf /* merge server configuration */ -}; - - -ngx_module_t ngx_mail_proxy_module = { - NGX_MODULE_V1, - &ngx_mail_proxy_module_ctx, /* module context */ - ngx_mail_proxy_commands, /* module directives */ - NGX_MAIL_MODULE, /* module type */ - NULL, /* init master */ - NULL, /* init module */ - NULL, /* init process */ - NULL, /* init thread */ - NULL, /* exit thread */ - NULL, /* exit process */ - NULL, /* exit master */ - NGX_MODULE_V1_PADDING -}; - - -static u_char smtp_auth_ok[] = "235 2.0.0 OK" CRLF; - - -void -ngx_mail_proxy_init(ngx_mail_session_t *s, ngx_addr_t *peer) -{ - ngx_int_t rc; - ngx_mail_proxy_ctx_t *p; - ngx_mail_proxy_conf_t *pcf; - ngx_mail_core_srv_conf_t *cscf; - - s->connection->log->action = "connecting to upstream"; - - cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); - - p = ngx_pcalloc(s->connection->pool, sizeof(ngx_mail_proxy_ctx_t)); - if (p == NULL) { - ngx_mail_session_internal_server_error(s); - return; - } - - s->proxy = p; - - p->upstream.sockaddr = peer->sockaddr; - p->upstream.socklen = peer->socklen; - p->upstream.name = &peer->name; - p->upstream.get = ngx_event_get_peer; - p->upstream.log = s->connection->log; - p->upstream.log_error = NGX_ERROR_ERR; - - rc = ngx_event_connect_peer(&p->upstream); - - if (rc == NGX_ERROR || rc == NGX_BUSY || rc == NGX_DECLINED) { - ngx_mail_proxy_internal_server_error(s); - return; - } - - ngx_add_timer(p->upstream.connection->read, cscf->timeout); - - p->upstream.connection->data = s; - p->upstream.connection->pool = s->connection->pool; - - s->connection->read->handler = ngx_mail_proxy_block_read; - p->upstream.connection->write->handler = ngx_mail_proxy_dummy_handler; - - pcf = ngx_mail_get_module_srv_conf(s, ngx_mail_proxy_module); - - s->proxy->buffer = ngx_create_temp_buf(s->connection->pool, - pcf->buffer_size); - if (s->proxy->buffer == NULL) { - ngx_mail_proxy_internal_server_error(s); - return; - } - - s->out.len = 0; - - switch (s->protocol) { - - case NGX_MAIL_POP3_PROTOCOL: - p->upstream.connection->read->handler = ngx_mail_proxy_pop3_handler; - s->mail_state = ngx_pop3_start; - break; - - case NGX_MAIL_IMAP_PROTOCOL: - p->upstream.connection->read->handler = ngx_mail_proxy_imap_handler; - s->mail_state = ngx_imap_start; - break; - - default: /* NGX_MAIL_SMTP_PROTOCOL */ - p->upstream.connection->read->handler = ngx_mail_proxy_smtp_handler; - s->mail_state = ngx_smtp_start; - break; - } -} - - -static void -ngx_mail_proxy_block_read(ngx_event_t *rev) -{ - ngx_connection_t *c; - ngx_mail_session_t *s; - - ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, "mail proxy block read"); - - if (ngx_handle_read_event(rev, 0) != NGX_OK) { - c = rev->data; - s = c->data; - - ngx_mail_proxy_close_session(s); - } -} - - -static void -ngx_mail_proxy_pop3_handler(ngx_event_t *rev) -{ - u_char *p; - ngx_int_t rc; - ngx_str_t line; - ngx_connection_t *c; - ngx_mail_session_t *s; - ngx_mail_proxy_conf_t *pcf; - - ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, - "mail proxy pop3 auth handler"); - - c = rev->data; - s = c->data; - - if (rev->timedout) { - ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, - "upstream timed out"); - c->timedout = 1; - ngx_mail_proxy_internal_server_error(s); - return; - } - - rc = ngx_mail_proxy_read_response(s, 0); - - if (rc == NGX_AGAIN) { - return; - } - - if (rc == NGX_ERROR) { - ngx_mail_proxy_upstream_error(s); - return; - } - - switch (s->mail_state) { - - case ngx_pop3_start: - ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, "mail proxy send user"); - - s->connection->log->action = "sending user name to upstream"; - - line.len = sizeof("USER ") - 1 + s->login.len + 2; - line.data = ngx_pnalloc(c->pool, line.len); - if (line.data == NULL) { - ngx_mail_proxy_internal_server_error(s); - return; - } - - p = ngx_cpymem(line.data, "USER ", sizeof("USER ") - 1); - p = ngx_cpymem(p, s->login.data, s->login.len); - *p++ = CR; *p = LF; - - s->mail_state = ngx_pop3_user; - break; - - case ngx_pop3_user: - ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, "mail proxy send pass"); - - s->connection->log->action = "sending password to upstream"; - - line.len = sizeof("PASS ") - 1 + s->passwd.len + 2; - line.data = ngx_pnalloc(c->pool, line.len); - if (line.data == NULL) { - ngx_mail_proxy_internal_server_error(s); - return; - } - - p = ngx_cpymem(line.data, "PASS ", sizeof("PASS ") - 1); - p = ngx_cpymem(p, s->passwd.data, s->passwd.len); - *p++ = CR; *p = LF; - - s->mail_state = ngx_pop3_passwd; - break; - - case ngx_pop3_passwd: - s->connection->read->handler = ngx_mail_proxy_handler; - s->connection->write->handler = ngx_mail_proxy_handler; - rev->handler = ngx_mail_proxy_handler; - c->write->handler = ngx_mail_proxy_handler; - - pcf = ngx_mail_get_module_srv_conf(s, ngx_mail_proxy_module); - ngx_add_timer(s->connection->read, pcf->timeout); - ngx_del_timer(c->read); - - c->log->action = NULL; - ngx_log_error(NGX_LOG_INFO, c->log, 0, "client logged in"); - - ngx_mail_proxy_handler(s->connection->write); - - return; - - default: -#if (NGX_SUPPRESS_WARN) - ngx_str_null(&line); -#endif - break; - } - - if (c->send(c, line.data, line.len) < (ssize_t) line.len) { - /* - * we treat the incomplete sending as NGX_ERROR - * because it is very strange here - */ - ngx_mail_proxy_internal_server_error(s); - return; - } - - s->proxy->buffer->pos = s->proxy->buffer->start; - s->proxy->buffer->last = s->proxy->buffer->start; -} - - -static void -ngx_mail_proxy_imap_handler(ngx_event_t *rev) -{ - u_char *p; - ngx_int_t rc; - ngx_str_t line; - ngx_connection_t *c; - ngx_mail_session_t *s; - ngx_mail_proxy_conf_t *pcf; - - ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, - "mail proxy imap auth handler"); - - c = rev->data; - s = c->data; - - if (rev->timedout) { - ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, - "upstream timed out"); - c->timedout = 1; - ngx_mail_proxy_internal_server_error(s); - return; - } - - rc = ngx_mail_proxy_read_response(s, s->mail_state); - - if (rc == NGX_AGAIN) { - return; - } - - if (rc == NGX_ERROR) { - ngx_mail_proxy_upstream_error(s); - return; - } - - switch (s->mail_state) { - - case ngx_imap_start: - ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, - "mail proxy send login"); - - s->connection->log->action = "sending LOGIN command to upstream"; - - line.len = s->tag.len + sizeof("LOGIN ") - 1 - + 1 + NGX_SIZE_T_LEN + 1 + 2; - line.data = ngx_pnalloc(c->pool, line.len); - if (line.data == NULL) { - ngx_mail_proxy_internal_server_error(s); - return; - } - - line.len = ngx_sprintf(line.data, "%VLOGIN {%uz}" CRLF, - &s->tag, s->login.len) - - line.data; - - s->mail_state = ngx_imap_login; - break; - - case ngx_imap_login: - ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, "mail proxy send user"); - - s->connection->log->action = "sending user name to upstream"; - - line.len = s->login.len + 1 + 1 + NGX_SIZE_T_LEN + 1 + 2; - line.data = ngx_pnalloc(c->pool, line.len); - if (line.data == NULL) { - ngx_mail_proxy_internal_server_error(s); - return; - } - - line.len = ngx_sprintf(line.data, "%V {%uz}" CRLF, - &s->login, s->passwd.len) - - line.data; - - s->mail_state = ngx_imap_user; - break; - - case ngx_imap_user: - ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, - "mail proxy send passwd"); - - s->connection->log->action = "sending password to upstream"; - - line.len = s->passwd.len + 2; - line.data = ngx_pnalloc(c->pool, line.len); - if (line.data == NULL) { - ngx_mail_proxy_internal_server_error(s); - return; - } - - p = ngx_cpymem(line.data, s->passwd.data, s->passwd.len); - *p++ = CR; *p = LF; - - s->mail_state = ngx_imap_passwd; - break; - - case ngx_imap_passwd: - s->connection->read->handler = ngx_mail_proxy_handler; - s->connection->write->handler = ngx_mail_proxy_handler; - rev->handler = ngx_mail_proxy_handler; - c->write->handler = ngx_mail_proxy_handler; - - pcf = ngx_mail_get_module_srv_conf(s, ngx_mail_proxy_module); - ngx_add_timer(s->connection->read, pcf->timeout); - ngx_del_timer(c->read); - - c->log->action = NULL; - ngx_log_error(NGX_LOG_INFO, c->log, 0, "client logged in"); - - ngx_mail_proxy_handler(s->connection->write); - - return; - - default: -#if (NGX_SUPPRESS_WARN) - ngx_str_null(&line); -#endif - break; - } - - if (c->send(c, line.data, line.len) < (ssize_t) line.len) { - /* - * we treat the incomplete sending as NGX_ERROR - * because it is very strange here - */ - ngx_mail_proxy_internal_server_error(s); - return; - } - - s->proxy->buffer->pos = s->proxy->buffer->start; - s->proxy->buffer->last = s->proxy->buffer->start; -} - - -static void -ngx_mail_proxy_smtp_handler(ngx_event_t *rev) -{ - u_char *p; - ngx_int_t rc; - ngx_str_t line; - ngx_buf_t *b; - ngx_connection_t *c; - ngx_mail_session_t *s; - ngx_mail_proxy_conf_t *pcf; - ngx_mail_core_srv_conf_t *cscf; - - ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, - "mail proxy smtp auth handler"); - - c = rev->data; - s = c->data; - - if (rev->timedout) { - ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, - "upstream timed out"); - c->timedout = 1; - ngx_mail_proxy_internal_server_error(s); - return; - } - - rc = ngx_mail_proxy_read_response(s, s->mail_state); - - if (rc == NGX_AGAIN) { - return; - } - - if (rc == NGX_ERROR) { - ngx_mail_proxy_upstream_error(s); - return; - } - - switch (s->mail_state) { - - case ngx_smtp_start: - ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, "mail proxy send ehlo"); - - s->connection->log->action = "sending HELO/EHLO to upstream"; - - cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); - - line.len = sizeof("HELO ") - 1 + cscf->server_name.len + 2; - line.data = ngx_pnalloc(c->pool, line.len); - if (line.data == NULL) { - ngx_mail_proxy_internal_server_error(s); - return; - } - - pcf = ngx_mail_get_module_srv_conf(s, ngx_mail_proxy_module); - - p = ngx_cpymem(line.data, - ((s->esmtp || pcf->xclient) ? "EHLO " : "HELO "), - sizeof("HELO ") - 1); - - p = ngx_cpymem(p, cscf->server_name.data, cscf->server_name.len); - *p++ = CR; *p = LF; - - if (pcf->xclient) { - s->mail_state = ngx_smtp_helo_xclient; - - } else if (s->auth_method == NGX_MAIL_AUTH_NONE) { - s->mail_state = ngx_smtp_helo_from; - - } else { - s->mail_state = ngx_smtp_helo; - } - - break; - - case ngx_smtp_helo_xclient: - ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, - "mail proxy send xclient"); - - s->connection->log->action = "sending XCLIENT to upstream"; - - line.len = sizeof("XCLIENT ADDR= LOGIN= NAME=" - CRLF) - 1 - + s->connection->addr_text.len + s->login.len + s->host.len; - -#if (NGX_HAVE_INET6) - if (s->connection->sockaddr->sa_family == AF_INET6) { - line.len += sizeof("IPV6:") - 1; - } -#endif - - line.data = ngx_pnalloc(c->pool, line.len); - if (line.data == NULL) { - ngx_mail_proxy_internal_server_error(s); - return; - } - - p = ngx_cpymem(line.data, "XCLIENT ADDR=", sizeof("XCLIENT ADDR=") - 1); - -#if (NGX_HAVE_INET6) - if (s->connection->sockaddr->sa_family == AF_INET6) { - p = ngx_cpymem(p, "IPV6:", sizeof("IPV6:") - 1); - } -#endif - - p = ngx_copy(p, s->connection->addr_text.data, - s->connection->addr_text.len); - - if (s->login.len) { - p = ngx_cpymem(p, " LOGIN=", sizeof(" LOGIN=") - 1); - p = ngx_copy(p, s->login.data, s->login.len); - } - - p = ngx_cpymem(p, " NAME=", sizeof(" NAME=") - 1); - p = ngx_copy(p, s->host.data, s->host.len); - - *p++ = CR; *p++ = LF; - - line.len = p - line.data; - - if (s->smtp_helo.len) { - s->mail_state = ngx_smtp_xclient_helo; - - } else if (s->auth_method == NGX_MAIL_AUTH_NONE) { - s->mail_state = ngx_smtp_xclient_from; - - } else { - s->mail_state = ngx_smtp_xclient; - } - - break; - - case ngx_smtp_xclient_helo: - ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, - "mail proxy send client ehlo"); - - s->connection->log->action = "sending client HELO/EHLO to upstream"; - - line.len = sizeof("HELO " CRLF) - 1 + s->smtp_helo.len; - - line.data = ngx_pnalloc(c->pool, line.len); - if (line.data == NULL) { - ngx_mail_proxy_internal_server_error(s); - return; - } - - line.len = ngx_sprintf(line.data, - ((s->esmtp) ? "EHLO %V" CRLF : "HELO %V" CRLF), - &s->smtp_helo) - - line.data; - - s->mail_state = (s->auth_method == NGX_MAIL_AUTH_NONE) ? - ngx_smtp_helo_from : ngx_smtp_helo; - - break; - - case ngx_smtp_helo_from: - case ngx_smtp_xclient_from: - ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, - "mail proxy send mail from"); - - s->connection->log->action = "sending MAIL FROM to upstream"; - - line.len = s->smtp_from.len + sizeof(CRLF) - 1; - line.data = ngx_pnalloc(c->pool, line.len); - if (line.data == NULL) { - ngx_mail_proxy_internal_server_error(s); - return; - } - - p = ngx_cpymem(line.data, s->smtp_from.data, s->smtp_from.len); - *p++ = CR; *p = LF; - - s->mail_state = ngx_smtp_from; - - break; - - case ngx_smtp_from: - ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, - "mail proxy send rcpt to"); - - s->connection->log->action = "sending RCPT TO to upstream"; - - line.len = s->smtp_to.len + sizeof(CRLF) - 1; - line.data = ngx_pnalloc(c->pool, line.len); - if (line.data == NULL) { - ngx_mail_proxy_internal_server_error(s); - return; - } - - p = ngx_cpymem(line.data, s->smtp_to.data, s->smtp_to.len); - *p++ = CR; *p = LF; - - s->mail_state = ngx_smtp_to; - - break; - - case ngx_smtp_helo: - case ngx_smtp_xclient: - case ngx_smtp_to: - - b = s->proxy->buffer; - - if (s->auth_method == NGX_MAIL_AUTH_NONE) { - b->pos = b->start; - - } else { - ngx_memcpy(b->start, smtp_auth_ok, sizeof(smtp_auth_ok) - 1); - b->last = b->start + sizeof(smtp_auth_ok) - 1; - } - - s->connection->read->handler = ngx_mail_proxy_handler; - s->connection->write->handler = ngx_mail_proxy_handler; - rev->handler = ngx_mail_proxy_handler; - c->write->handler = ngx_mail_proxy_handler; - - pcf = ngx_mail_get_module_srv_conf(s, ngx_mail_proxy_module); - ngx_add_timer(s->connection->read, pcf->timeout); - ngx_del_timer(c->read); - - c->log->action = NULL; - ngx_log_error(NGX_LOG_INFO, c->log, 0, "client logged in"); - - if (s->buffer->pos == s->buffer->last) { - ngx_mail_proxy_handler(s->connection->write); - - } else { - ngx_mail_proxy_handler(c->write); - } - - return; - - default: -#if (NGX_SUPPRESS_WARN) - ngx_str_null(&line); -#endif - break; - } - - if (c->send(c, line.data, line.len) < (ssize_t) line.len) { - /* - * we treat the incomplete sending as NGX_ERROR - * because it is very strange here - */ - ngx_mail_proxy_internal_server_error(s); - return; - } - - s->proxy->buffer->pos = s->proxy->buffer->start; - s->proxy->buffer->last = s->proxy->buffer->start; -} - - -static void -ngx_mail_proxy_dummy_handler(ngx_event_t *wev) -{ - ngx_connection_t *c; - ngx_mail_session_t *s; - - ngx_log_debug0(NGX_LOG_DEBUG_MAIL, wev->log, 0, "mail proxy dummy handler"); - - if (ngx_handle_write_event(wev, 0) != NGX_OK) { - c = wev->data; - s = c->data; - - ngx_mail_proxy_close_session(s); - } -} - - -static ngx_int_t -ngx_mail_proxy_read_response(ngx_mail_session_t *s, ngx_uint_t state) -{ - u_char *p, *m; - ssize_t n; - ngx_buf_t *b; - ngx_mail_proxy_conf_t *pcf; - - s->connection->log->action = "reading response from upstream"; - - b = s->proxy->buffer; - - n = s->proxy->upstream.connection->recv(s->proxy->upstream.connection, - b->last, b->end - b->last); - - if (n == NGX_ERROR || n == 0) { - return NGX_ERROR; - } - - if (n == NGX_AGAIN) { - return NGX_AGAIN; - } - - b->last += n; - - if (b->last - b->pos < 4) { - return NGX_AGAIN; - } - - if (*(b->last - 2) != CR || *(b->last - 1) != LF) { - if (b->last == b->end) { - *(b->last - 1) = '\0'; - ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, - "upstream sent too long response line: \"%s\"", - b->pos); - return NGX_ERROR; - } - - return NGX_AGAIN; - } - - p = b->pos; - - switch (s->protocol) { - - case NGX_MAIL_POP3_PROTOCOL: - if (p[0] == '+' && p[1] == 'O' && p[2] == 'K') { - return NGX_OK; - } - break; - - case NGX_MAIL_IMAP_PROTOCOL: - switch (state) { - - case ngx_imap_start: - if (p[0] == '*' && p[1] == ' ' && p[2] == 'O' && p[3] == 'K') { - return NGX_OK; - } - break; - - case ngx_imap_login: - case ngx_imap_user: - if (p[0] == '+') { - return NGX_OK; - } - break; - - case ngx_imap_passwd: - if (ngx_strncmp(p, s->tag.data, s->tag.len) == 0) { - p += s->tag.len; - if (p[0] == 'O' && p[1] == 'K') { - return NGX_OK; - } - } - break; - } - - break; - - default: /* NGX_MAIL_SMTP_PROTOCOL */ - - if (p[3] == '-') { - /* multiline reply, check if we got last line */ - - m = b->last - (sizeof(CRLF "200" CRLF) - 1); - - while (m > p) { - if (m[0] == CR && m[1] == LF) { - break; - } - - m--; - } - - if (m <= p || m[5] == '-') { - return NGX_AGAIN; - } - } - - switch (state) { - - case ngx_smtp_start: - if (p[0] == '2' && p[1] == '2' && p[2] == '0') { - return NGX_OK; - } - break; - - case ngx_smtp_helo: - case ngx_smtp_helo_xclient: - case ngx_smtp_helo_from: - case ngx_smtp_from: - if (p[0] == '2' && p[1] == '5' && p[2] == '0') { - return NGX_OK; - } - break; - - case ngx_smtp_xclient: - case ngx_smtp_xclient_from: - case ngx_smtp_xclient_helo: - if (p[0] == '2' && (p[1] == '2' || p[1] == '5') && p[2] == '0') { - return NGX_OK; - } - break; - - case ngx_smtp_to: - return NGX_OK; - } - - break; - } - - pcf = ngx_mail_get_module_srv_conf(s, ngx_mail_proxy_module); - - if (pcf->pass_error_message == 0) { - *(b->last - 2) = '\0'; - ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, - "upstream sent invalid response: \"%s\"", p); - return NGX_ERROR; - } - - s->out.len = b->last - p - 2; - s->out.data = p; - - ngx_log_error(NGX_LOG_INFO, s->connection->log, 0, - "upstream sent invalid response: \"%V\"", &s->out); - - s->out.len = b->last - b->pos; - s->out.data = b->pos; - - return NGX_ERROR; -} - - -static void -ngx_mail_proxy_handler(ngx_event_t *ev) -{ - char *action, *recv_action, *send_action; - size_t size; - ssize_t n; - ngx_buf_t *b; - ngx_uint_t do_write; - ngx_connection_t *c, *src, *dst; - ngx_mail_session_t *s; - ngx_mail_proxy_conf_t *pcf; - - c = ev->data; - s = c->data; - - if (ev->timedout || c->close) { - c->log->action = "proxying"; - - if (c->close) { - ngx_log_error(NGX_LOG_INFO, c->log, 0, "shutdown timeout"); - - } else if (c == s->connection) { - ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, - "client timed out"); - c->timedout = 1; - - } else { - ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, - "upstream timed out"); - } - - ngx_mail_proxy_close_session(s); - return; - } - - if (c == s->connection) { - if (ev->write) { - recv_action = "proxying and reading from upstream"; - send_action = "proxying and sending to client"; - src = s->proxy->upstream.connection; - dst = c; - b = s->proxy->buffer; - - } else { - recv_action = "proxying and reading from client"; - send_action = "proxying and sending to upstream"; - src = c; - dst = s->proxy->upstream.connection; - b = s->buffer; - } - - } else { - if (ev->write) { - recv_action = "proxying and reading from client"; - send_action = "proxying and sending to upstream"; - src = s->connection; - dst = c; - b = s->buffer; - - } else { - recv_action = "proxying and reading from upstream"; - send_action = "proxying and sending to client"; - src = c; - dst = s->connection; - b = s->proxy->buffer; - } - } - - do_write = ev->write ? 1 : 0; - - ngx_log_debug3(NGX_LOG_DEBUG_MAIL, ev->log, 0, - "mail proxy handler: %ui, #%d > #%d", - do_write, src->fd, dst->fd); - - for ( ;; ) { - - if (do_write) { - - size = b->last - b->pos; - - if (size && dst->write->ready) { - c->log->action = send_action; - - n = dst->send(dst, b->pos, size); - - if (n == NGX_ERROR) { - ngx_mail_proxy_close_session(s); - return; - } - - if (n > 0) { - b->pos += n; - - if (b->pos == b->last) { - b->pos = b->start; - b->last = b->start; - } - } - } - } - - size = b->end - b->last; - - if (size && src->read->ready) { - c->log->action = recv_action; - - n = src->recv(src, b->last, size); - - if (n == NGX_AGAIN || n == 0) { - break; - } - - if (n > 0) { - do_write = 1; - b->last += n; - - continue; - } - - if (n == NGX_ERROR) { - src->read->eof = 1; - } - } - - break; - } - - c->log->action = "proxying"; - - if ((s->connection->read->eof && s->buffer->pos == s->buffer->last) - || (s->proxy->upstream.connection->read->eof - && s->proxy->buffer->pos == s->proxy->buffer->last) - || (s->connection->read->eof - && s->proxy->upstream.connection->read->eof)) - { - action = c->log->action; - c->log->action = NULL; - ngx_log_error(NGX_LOG_INFO, c->log, 0, "proxied session done"); - c->log->action = action; - - ngx_mail_proxy_close_session(s); - return; - } - - if (ngx_handle_write_event(dst->write, 0) != NGX_OK) { - ngx_mail_proxy_close_session(s); - return; - } - - if (ngx_handle_read_event(dst->read, 0) != NGX_OK) { - ngx_mail_proxy_close_session(s); - return; - } - - if (ngx_handle_write_event(src->write, 0) != NGX_OK) { - ngx_mail_proxy_close_session(s); - return; - } - - if (ngx_handle_read_event(src->read, 0) != NGX_OK) { - ngx_mail_proxy_close_session(s); - return; - } - - if (c == s->connection) { - pcf = ngx_mail_get_module_srv_conf(s, ngx_mail_proxy_module); - ngx_add_timer(c->read, pcf->timeout); - } -} - - -static void -ngx_mail_proxy_upstream_error(ngx_mail_session_t *s) -{ - if (s->proxy->upstream.connection) { - ngx_log_debug1(NGX_LOG_DEBUG_MAIL, s->connection->log, 0, - "close mail proxy connection: %d", - s->proxy->upstream.connection->fd); - - ngx_close_connection(s->proxy->upstream.connection); - } - - if (s->out.len == 0) { - ngx_mail_session_internal_server_error(s); - return; - } - - s->quit = 1; - ngx_mail_send(s->connection->write); -} - - -static void -ngx_mail_proxy_internal_server_error(ngx_mail_session_t *s) -{ - if (s->proxy->upstream.connection) { - ngx_log_debug1(NGX_LOG_DEBUG_MAIL, s->connection->log, 0, - "close mail proxy connection: %d", - s->proxy->upstream.connection->fd); - - ngx_close_connection(s->proxy->upstream.connection); - } - - ngx_mail_session_internal_server_error(s); -} - - -static void -ngx_mail_proxy_close_session(ngx_mail_session_t *s) -{ - if (s->proxy->upstream.connection) { - ngx_log_debug1(NGX_LOG_DEBUG_MAIL, s->connection->log, 0, - "close mail proxy connection: %d", - s->proxy->upstream.connection->fd); - - ngx_close_connection(s->proxy->upstream.connection); - } - - ngx_mail_close_connection(s->connection); -} - - -static void * -ngx_mail_proxy_create_conf(ngx_conf_t *cf) -{ - ngx_mail_proxy_conf_t *pcf; - - pcf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_proxy_conf_t)); - if (pcf == NULL) { - return NULL; - } - - pcf->enable = NGX_CONF_UNSET; - pcf->pass_error_message = NGX_CONF_UNSET; - pcf->xclient = NGX_CONF_UNSET; - pcf->buffer_size = NGX_CONF_UNSET_SIZE; - pcf->timeout = NGX_CONF_UNSET_MSEC; - - return pcf; -} - - -static char * -ngx_mail_proxy_merge_conf(ngx_conf_t *cf, void *parent, void *child) -{ - ngx_mail_proxy_conf_t *prev = parent; - ngx_mail_proxy_conf_t *conf = child; - - ngx_conf_merge_value(conf->enable, prev->enable, 0); - ngx_conf_merge_value(conf->pass_error_message, prev->pass_error_message, 0); - ngx_conf_merge_value(conf->xclient, prev->xclient, 1); - ngx_conf_merge_size_value(conf->buffer_size, prev->buffer_size, - (size_t) ngx_pagesize); - ngx_conf_merge_msec_value(conf->timeout, prev->timeout, 24 * 60 * 60000); - - return NGX_CONF_OK; -} diff --git a/nginx/src/mail/ngx_mail_smtp_handler.c b/nginx/src/mail/ngx_mail_smtp_handler.c deleted file mode 100644 index 939fb1a..0000000 --- a/nginx/src/mail/ngx_mail_smtp_handler.c +++ /dev/null @@ -1,872 +0,0 @@ - -/* - * Copyright (C) Igor Sysoev - * Copyright (C) Nginx, Inc. - */ - - -#include <ngx_config.h> -#include <ngx_core.h> -#include <ngx_event.h> -#include <ngx_mail.h> -#include <ngx_mail_smtp_module.h> - - -static void ngx_mail_smtp_resolve_addr_handler(ngx_resolver_ctx_t *ctx); -static void ngx_mail_smtp_resolve_name(ngx_event_t *rev); -static void ngx_mail_smtp_resolve_name_handler(ngx_resolver_ctx_t *ctx); -static void ngx_mail_smtp_greeting(ngx_mail_session_t *s, ngx_connection_t *c); -static void ngx_mail_smtp_invalid_pipelining(ngx_event_t *rev); -static ngx_int_t ngx_mail_smtp_create_buffer(ngx_mail_session_t *s, - ngx_connection_t *c); - -static ngx_int_t ngx_mail_smtp_helo(ngx_mail_session_t *s, ngx_connection_t *c); -static ngx_int_t ngx_mail_smtp_auth(ngx_mail_session_t *s, ngx_connection_t *c); -static ngx_int_t ngx_mail_smtp_mail(ngx_mail_session_t *s, ngx_connection_t *c); -static ngx_int_t ngx_mail_smtp_starttls(ngx_mail_session_t *s, - ngx_connection_t *c); -static ngx_int_t ngx_mail_smtp_rset(ngx_mail_session_t *s, ngx_connection_t *c); -static ngx_int_t ngx_mail_smtp_rcpt(ngx_mail_session_t *s, ngx_connection_t *c); - -static ngx_int_t ngx_mail_smtp_discard_command(ngx_mail_session_t *s, - ngx_connection_t *c, char *err); -static void ngx_mail_smtp_log_rejected_command(ngx_mail_session_t *s, - ngx_connection_t *c, char *err); - - -static u_char smtp_ok[] = "250 2.0.0 OK" CRLF; -static u_char smtp_bye[] = "221 2.0.0 Bye" CRLF; -static u_char smtp_starttls[] = "220 2.0.0 Start TLS" CRLF; -static u_char smtp_next[] = "334 " CRLF; -static u_char smtp_username[] = "334 VXNlcm5hbWU6" CRLF; -static u_char smtp_password[] = "334 UGFzc3dvcmQ6" CRLF; -static u_char smtp_invalid_command[] = "500 5.5.1 Invalid command" CRLF; -static u_char smtp_invalid_pipelining[] = - "503 5.5.0 Improper use of SMTP command pipelining" CRLF; -static u_char smtp_invalid_argument[] = "501 5.5.4 Invalid argument" CRLF; -static u_char smtp_auth_required[] = "530 5.7.1 Authentication required" CRLF; -static u_char smtp_bad_sequence[] = "503 5.5.1 Bad sequence of commands" CRLF; - - -static ngx_str_t smtp_unavailable = ngx_string("[UNAVAILABLE]"); -static ngx_str_t smtp_tempunavail = ngx_string("[TEMPUNAVAIL]"); - - -void -ngx_mail_smtp_init_session(ngx_mail_session_t *s, ngx_connection_t *c) -{ - ngx_resolver_ctx_t *ctx; - ngx_mail_core_srv_conf_t *cscf; - - cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); - - if (cscf->resolver == NULL) { - s->host = smtp_unavailable; - ngx_mail_smtp_greeting(s, c); - return; - } - -#if (NGX_HAVE_UNIX_DOMAIN) - if (c->sockaddr->sa_family == AF_UNIX) { - s->host = smtp_tempunavail; - ngx_mail_smtp_greeting(s, c); - return; - } -#endif - - c->log->action = "in resolving client address"; - - ctx = ngx_resolve_start(cscf->resolver, NULL); - if (ctx == NULL) { - ngx_mail_close_connection(c); - return; - } - - ctx->addr.sockaddr = c->sockaddr; - ctx->addr.socklen = c->socklen; - ctx->handler = ngx_mail_smtp_resolve_addr_handler; - ctx->data = s; - ctx->timeout = cscf->resolver_timeout; - - if (ngx_resolve_addr(ctx) != NGX_OK) { - ngx_mail_close_connection(c); - } -} - - -static void -ngx_mail_smtp_resolve_addr_handler(ngx_resolver_ctx_t *ctx) -{ - ngx_connection_t *c; - ngx_mail_session_t *s; - - s = ctx->data; - c = s->connection; - - if (ctx->state) { - ngx_log_error(NGX_LOG_ERR, c->log, 0, - "%V could not be resolved (%i: %s)", - &c->addr_text, ctx->state, - ngx_resolver_strerror(ctx->state)); - - if (ctx->state == NGX_RESOLVE_NXDOMAIN) { - s->host = smtp_unavailable; - - } else { - s->host = smtp_tempunavail; - } - - ngx_resolve_addr_done(ctx); - - ngx_mail_smtp_greeting(s, s->connection); - - return; - } - - c->log->action = "in resolving client hostname"; - - s->host.data = ngx_pstrdup(c->pool, &ctx->name); - if (s->host.data == NULL) { - ngx_resolve_addr_done(ctx); - ngx_mail_close_connection(c); - return; - } - - s->host.len = ctx->name.len; - - ngx_resolve_addr_done(ctx); - - ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, - "address resolved: %V", &s->host); - - c->read->handler = ngx_mail_smtp_resolve_name; - - ngx_post_event(c->read, &ngx_posted_events); -} - - -static void -ngx_mail_smtp_resolve_name(ngx_event_t *rev) -{ - ngx_connection_t *c; - ngx_mail_session_t *s; - ngx_resolver_ctx_t *ctx; - ngx_mail_core_srv_conf_t *cscf; - - c = rev->data; - s = c->data; - - cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); - - ctx = ngx_resolve_start(cscf->resolver, NULL); - if (ctx == NULL) { - ngx_mail_close_connection(c); - return; - } - - ctx->name = s->host; - ctx->handler = ngx_mail_smtp_resolve_name_handler; - ctx->data = s; - ctx->timeout = cscf->resolver_timeout; - - if (ngx_resolve_name(ctx) != NGX_OK) { - ngx_mail_close_connection(c); - } -} - - -static void -ngx_mail_smtp_resolve_name_handler(ngx_resolver_ctx_t *ctx) -{ - ngx_uint_t i; - ngx_connection_t *c; - ngx_mail_session_t *s; - - s = ctx->data; - c = s->connection; - - if (ctx->state) { - ngx_log_error(NGX_LOG_ERR, c->log, 0, - "\"%V\" could not be resolved (%i: %s)", - &ctx->name, ctx->state, - ngx_resolver_strerror(ctx->state)); - - if (ctx->state == NGX_RESOLVE_NXDOMAIN) { - s->host = smtp_unavailable; - - } else { - s->host = smtp_tempunavail; - } - - } else { - -#if (NGX_DEBUG) - { - u_char text[NGX_SOCKADDR_STRLEN]; - ngx_str_t addr; - - addr.data = text; - - for (i = 0; i < ctx->naddrs; i++) { - addr.len = ngx_sock_ntop(ctx->addrs[i].sockaddr, - ctx->addrs[i].socklen, - text, NGX_SOCKADDR_STRLEN, 0); - - ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, - "name was resolved to %V", &addr); - } - } -#endif - - for (i = 0; i < ctx->naddrs; i++) { - if (ngx_cmp_sockaddr(ctx->addrs[i].sockaddr, ctx->addrs[i].socklen, - c->sockaddr, c->socklen, 0) - == NGX_OK) - { - goto found; - } - } - - s->host = smtp_unavailable; - } - -found: - - ngx_resolve_name_done(ctx); - - ngx_mail_smtp_greeting(s, c); -} - - -static void -ngx_mail_smtp_greeting(ngx_mail_session_t *s, ngx_connection_t *c) -{ - ngx_msec_t timeout; - ngx_mail_core_srv_conf_t *cscf; - ngx_mail_smtp_srv_conf_t *sscf; - - ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, - "smtp greeting for \"%V\"", &s->host); - - cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); - sscf = ngx_mail_get_module_srv_conf(s, ngx_mail_smtp_module); - - timeout = sscf->greeting_delay ? sscf->greeting_delay : cscf->timeout; - ngx_add_timer(c->read, timeout); - - if (ngx_handle_read_event(c->read, 0) != NGX_OK) { - ngx_mail_close_connection(c); - } - - if (sscf->greeting_delay) { - c->read->handler = ngx_mail_smtp_invalid_pipelining; - return; - } - - c->read->handler = ngx_mail_smtp_init_protocol; - - s->out = sscf->greeting; - - ngx_mail_send(c->write); -} - - -static void -ngx_mail_smtp_invalid_pipelining(ngx_event_t *rev) -{ - ngx_connection_t *c; - ngx_mail_session_t *s; - ngx_mail_core_srv_conf_t *cscf; - ngx_mail_smtp_srv_conf_t *sscf; - - c = rev->data; - s = c->data; - - c->log->action = "in delay pipelining state"; - - if (rev->timedout) { - - ngx_log_debug0(NGX_LOG_DEBUG_MAIL, c->log, 0, "delay greeting"); - - rev->timedout = 0; - - cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); - - c->read->handler = ngx_mail_smtp_init_protocol; - - ngx_add_timer(c->read, cscf->timeout); - - if (ngx_handle_read_event(c->read, 0) != NGX_OK) { - ngx_mail_close_connection(c); - return; - } - - sscf = ngx_mail_get_module_srv_conf(s, ngx_mail_smtp_module); - - s->out = sscf->greeting; - - } else { - - ngx_log_debug0(NGX_LOG_DEBUG_MAIL, c->log, 0, "invalid pipelining"); - - if (s->buffer == NULL) { - if (ngx_mail_smtp_create_buffer(s, c) != NGX_OK) { - return; - } - } - - if (ngx_mail_smtp_discard_command(s, c, - "client was rejected before greeting: \"%V\"") - != NGX_OK) - { - return; - } - - ngx_str_set(&s->out, smtp_invalid_pipelining); - s->quit = 1; - } - - ngx_mail_send(c->write); -} - - -void -ngx_mail_smtp_init_protocol(ngx_event_t *rev) -{ - ngx_connection_t *c; - ngx_mail_session_t *s; - - c = rev->data; - - c->log->action = "in auth state"; - - if (rev->timedout) { - ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out"); - c->timedout = 1; - ngx_mail_close_connection(c); - return; - } - - s = c->data; - - if (s->buffer == NULL) { - if (ngx_mail_smtp_create_buffer(s, c) != NGX_OK) { - return; - } - } - - s->mail_state = ngx_smtp_start; - c->read->handler = ngx_mail_smtp_auth_state; - - ngx_mail_smtp_auth_state(rev); -} - - -static ngx_int_t -ngx_mail_smtp_create_buffer(ngx_mail_session_t *s, ngx_connection_t *c) -{ - ngx_mail_smtp_srv_conf_t *sscf; - - if (ngx_array_init(&s->args, c->pool, 2, sizeof(ngx_str_t)) == NGX_ERROR) { - ngx_mail_session_internal_server_error(s); - return NGX_ERROR; - } - - sscf = ngx_mail_get_module_srv_conf(s, ngx_mail_smtp_module); - - s->buffer = ngx_create_temp_buf(c->pool, sscf->client_buffer_size); - if (s->buffer == NULL) { - ngx_mail_session_internal_server_error(s); - return NGX_ERROR; - } - - return NGX_OK; -} - - -void -ngx_mail_smtp_auth_state(ngx_event_t *rev) -{ - ngx_int_t rc; - ngx_connection_t *c; - ngx_mail_session_t *s; - - c = rev->data; - s = c->data; - - ngx_log_debug0(NGX_LOG_DEBUG_MAIL, c->log, 0, "smtp auth state"); - - if (rev->timedout) { - ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out"); - c->timedout = 1; - ngx_mail_close_connection(c); - return; - } - - if (s->out.len) { - ngx_log_debug0(NGX_LOG_DEBUG_MAIL, c->log, 0, "smtp send handler busy"); - s->blocked = 1; - return; - } - - s->blocked = 0; - - rc = ngx_mail_read_command(s, c); - - if (rc == NGX_AGAIN || rc == NGX_ERROR) { - return; - } - - ngx_str_set(&s->out, smtp_ok); - - if (rc == NGX_OK) { - switch (s->mail_state) { - - case ngx_smtp_start: - - switch (s->command) { - - case NGX_SMTP_HELO: - case NGX_SMTP_EHLO: - rc = ngx_mail_smtp_helo(s, c); - break; - - case NGX_SMTP_AUTH: - rc = ngx_mail_smtp_auth(s, c); - break; - - case NGX_SMTP_QUIT: - s->quit = 1; - ngx_str_set(&s->out, smtp_bye); - break; - - case NGX_SMTP_MAIL: - rc = ngx_mail_smtp_mail(s, c); - break; - - case NGX_SMTP_RCPT: - rc = ngx_mail_smtp_rcpt(s, c); - break; - - case NGX_SMTP_RSET: - rc = ngx_mail_smtp_rset(s, c); - break; - - case NGX_SMTP_NOOP: - break; - - case NGX_SMTP_STARTTLS: - rc = ngx_mail_smtp_starttls(s, c); - ngx_str_set(&s->out, smtp_starttls); - break; - - default: - rc = NGX_MAIL_PARSE_INVALID_COMMAND; - break; - } - - break; - - case ngx_smtp_auth_login_username: - rc = ngx_mail_auth_login_username(s, c, 0); - - ngx_str_set(&s->out, smtp_password); - s->mail_state = ngx_smtp_auth_login_password; - break; - - case ngx_smtp_auth_login_password: - rc = ngx_mail_auth_login_password(s, c); - break; - - case ngx_smtp_auth_plain: - rc = ngx_mail_auth_plain(s, c, 0); - break; - - case ngx_smtp_auth_cram_md5: - rc = ngx_mail_auth_cram_md5(s, c); - break; - - case ngx_smtp_auth_external: - rc = ngx_mail_auth_external(s, c, 0); - break; - } - } - - if (s->buffer->pos < s->buffer->last) { - s->blocked = 1; - } - - switch (rc) { - - case NGX_DONE: - ngx_mail_auth(s, c); - return; - - case NGX_ERROR: - ngx_mail_session_internal_server_error(s); - return; - - case NGX_MAIL_PARSE_INVALID_COMMAND: - s->mail_state = ngx_smtp_start; - s->state = 0; - ngx_str_set(&s->out, smtp_invalid_command); - - /* fall through */ - - case NGX_OK: - s->args.nelts = 0; - - if (s->buffer->pos == s->buffer->last) { - s->buffer->pos = s->buffer->start; - s->buffer->last = s->buffer->start; - } - - if (s->state) { - s->arg_start = s->buffer->pos; - } - - ngx_mail_send(c->write); - } -} - - -static ngx_int_t -ngx_mail_smtp_helo(ngx_mail_session_t *s, ngx_connection_t *c) -{ - ngx_str_t *arg; - ngx_mail_smtp_srv_conf_t *sscf; - - if (s->args.nelts != 1) { - ngx_str_set(&s->out, smtp_invalid_argument); - s->state = 0; - return NGX_OK; - } - - arg = s->args.elts; - - s->smtp_helo.len = arg[0].len; - - s->smtp_helo.data = ngx_pnalloc(c->pool, arg[0].len); - if (s->smtp_helo.data == NULL) { - return NGX_ERROR; - } - - ngx_memcpy(s->smtp_helo.data, arg[0].data, arg[0].len); - - ngx_str_null(&s->smtp_from); - ngx_str_null(&s->smtp_to); - - sscf = ngx_mail_get_module_srv_conf(s, ngx_mail_smtp_module); - - if (s->command == NGX_SMTP_HELO) { - s->out = sscf->server_name; - - } else { - s->esmtp = 1; - -#if (NGX_MAIL_SSL) - - if (c->ssl == NULL) { - ngx_mail_ssl_conf_t *sslcf; - - sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); - - if (sslcf->starttls == NGX_MAIL_STARTTLS_ON) { - s->out = sscf->starttls_capability; - return NGX_OK; - } - - if (sslcf->starttls == NGX_MAIL_STARTTLS_ONLY) { - s->out = sscf->starttls_only_capability; - return NGX_OK; - } - } -#endif - - s->out = sscf->capability; - } - - return NGX_OK; -} - - -static ngx_int_t -ngx_mail_smtp_auth(ngx_mail_session_t *s, ngx_connection_t *c) -{ - ngx_int_t rc; - ngx_mail_core_srv_conf_t *cscf; - ngx_mail_smtp_srv_conf_t *sscf; - -#if (NGX_MAIL_SSL) - if (ngx_mail_starttls_only(s, c)) { - return NGX_MAIL_PARSE_INVALID_COMMAND; - } -#endif - - if (s->args.nelts == 0) { - ngx_str_set(&s->out, smtp_invalid_argument); - s->state = 0; - return NGX_OK; - } - - sscf = ngx_mail_get_module_srv_conf(s, ngx_mail_smtp_module); - - rc = ngx_mail_auth_parse(s, c); - - switch (rc) { - - case NGX_MAIL_AUTH_LOGIN: - - ngx_str_set(&s->out, smtp_username); - s->mail_state = ngx_smtp_auth_login_username; - - return NGX_OK; - - case NGX_MAIL_AUTH_LOGIN_USERNAME: - - ngx_str_set(&s->out, smtp_password); - s->mail_state = ngx_smtp_auth_login_password; - - return ngx_mail_auth_login_username(s, c, 1); - - case NGX_MAIL_AUTH_PLAIN: - - ngx_str_set(&s->out, smtp_next); - s->mail_state = ngx_smtp_auth_plain; - - return NGX_OK; - - case NGX_MAIL_AUTH_CRAM_MD5: - - if (!(sscf->auth_methods & NGX_MAIL_AUTH_CRAM_MD5_ENABLED)) { - return NGX_MAIL_PARSE_INVALID_COMMAND; - } - - if (s->salt.data == NULL) { - cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); - - if (ngx_mail_salt(s, c, cscf) != NGX_OK) { - return NGX_ERROR; - } - } - - if (ngx_mail_auth_cram_md5_salt(s, c, "334 ", 4) == NGX_OK) { - s->mail_state = ngx_smtp_auth_cram_md5; - return NGX_OK; - } - - return NGX_ERROR; - - case NGX_MAIL_AUTH_EXTERNAL: - - if (!(sscf->auth_methods & NGX_MAIL_AUTH_EXTERNAL_ENABLED)) { - return NGX_MAIL_PARSE_INVALID_COMMAND; - } - - ngx_str_set(&s->out, smtp_username); - s->mail_state = ngx_smtp_auth_external; - - return NGX_OK; - } - - return rc; -} - - -static ngx_int_t -ngx_mail_smtp_mail(ngx_mail_session_t *s, ngx_connection_t *c) -{ - ngx_str_t *arg, cmd; - ngx_mail_smtp_srv_conf_t *sscf; - - sscf = ngx_mail_get_module_srv_conf(s, ngx_mail_smtp_module); - - if (!(sscf->auth_methods & NGX_MAIL_AUTH_NONE_ENABLED)) { - ngx_mail_smtp_log_rejected_command(s, c, "client was rejected: \"%V\""); - ngx_str_set(&s->out, smtp_auth_required); - return NGX_OK; - } - - /* auth none */ - - if (s->smtp_from.len) { - ngx_str_set(&s->out, smtp_bad_sequence); - return NGX_OK; - } - - if (s->args.nelts == 0) { - ngx_str_set(&s->out, smtp_invalid_argument); - return NGX_OK; - } - - arg = s->args.elts; - arg += s->args.nelts - 1; - - cmd.len = arg->data + arg->len - s->cmd.data; - cmd.data = s->cmd.data; - - s->smtp_from.len = cmd.len; - - s->smtp_from.data = ngx_pnalloc(c->pool, cmd.len); - if (s->smtp_from.data == NULL) { - return NGX_ERROR; - } - - ngx_memcpy(s->smtp_from.data, cmd.data, cmd.len); - - ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, - "smtp mail from:\"%V\"", &s->smtp_from); - - ngx_str_set(&s->out, smtp_ok); - - return NGX_OK; -} - - -static ngx_int_t -ngx_mail_smtp_rcpt(ngx_mail_session_t *s, ngx_connection_t *c) -{ - ngx_str_t *arg, cmd; - - if (s->smtp_from.len == 0) { - ngx_str_set(&s->out, smtp_bad_sequence); - return NGX_OK; - } - - if (s->args.nelts == 0) { - ngx_str_set(&s->out, smtp_invalid_argument); - return NGX_OK; - } - - arg = s->args.elts; - arg += s->args.nelts - 1; - - cmd.len = arg->data + arg->len - s->cmd.data; - cmd.data = s->cmd.data; - - s->smtp_to.len = cmd.len; - - s->smtp_to.data = ngx_pnalloc(c->pool, cmd.len); - if (s->smtp_to.data == NULL) { - return NGX_ERROR; - } - - ngx_memcpy(s->smtp_to.data, cmd.data, cmd.len); - - ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, - "smtp rcpt to:\"%V\"", &s->smtp_to); - - s->auth_method = NGX_MAIL_AUTH_NONE; - - return NGX_DONE; -} - - -static ngx_int_t -ngx_mail_smtp_rset(ngx_mail_session_t *s, ngx_connection_t *c) -{ - ngx_str_null(&s->smtp_from); - ngx_str_null(&s->smtp_to); - ngx_str_set(&s->out, smtp_ok); - - return NGX_OK; -} - - -static ngx_int_t -ngx_mail_smtp_starttls(ngx_mail_session_t *s, ngx_connection_t *c) -{ -#if (NGX_MAIL_SSL) - ngx_mail_ssl_conf_t *sslcf; - - if (c->ssl == NULL) { - sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); - if (sslcf->starttls) { - - /* - * RFC3207 requires us to discard any knowledge - * obtained from client before STARTTLS. - */ - - ngx_str_null(&s->smtp_helo); - ngx_str_null(&s->smtp_from); - ngx_str_null(&s->smtp_to); - - s->buffer->pos = s->buffer->start; - s->buffer->last = s->buffer->start; - - c->read->handler = ngx_mail_starttls_handler; - return NGX_OK; - } - } - -#endif - - return NGX_MAIL_PARSE_INVALID_COMMAND; -} - - -static ngx_int_t -ngx_mail_smtp_discard_command(ngx_mail_session_t *s, ngx_connection_t *c, - char *err) -{ - ssize_t n; - - n = c->recv(c, s->buffer->last, s->buffer->end - s->buffer->last); - - if (n == NGX_ERROR || n == 0) { - ngx_mail_close_connection(c); - return NGX_ERROR; - } - - if (n > 0) { - s->buffer->last += n; - } - - if (n == NGX_AGAIN) { - if (ngx_handle_read_event(c->read, 0) != NGX_OK) { - ngx_mail_session_internal_server_error(s); - return NGX_ERROR; - } - - return NGX_AGAIN; - } - - ngx_mail_smtp_log_rejected_command(s, c, err); - - s->buffer->pos = s->buffer->start; - s->buffer->last = s->buffer->start; - - return NGX_OK; -} - - -static void -ngx_mail_smtp_log_rejected_command(ngx_mail_session_t *s, ngx_connection_t *c, - char *err) -{ - u_char ch; - ngx_str_t cmd; - ngx_uint_t i; - - if (c->log->log_level < NGX_LOG_INFO) { - return; - } - - cmd.len = s->buffer->last - s->buffer->start; - cmd.data = s->buffer->start; - - for (i = 0; i < cmd.len; i++) { - ch = cmd.data[i]; - - if (ch != CR && ch != LF) { - continue; - } - - cmd.data[i] = '_'; - } - - cmd.len = i; - - ngx_log_error(NGX_LOG_INFO, c->log, 0, err, &cmd); -} diff --git a/nginx/src/mail/ngx_mail_smtp_module.c b/nginx/src/mail/ngx_mail_smtp_module.c deleted file mode 100644 index 3b5a2d8..0000000 --- a/nginx/src/mail/ngx_mail_smtp_module.c +++ /dev/null @@ -1,311 +0,0 @@ - -/* - * Copyright (C) Igor Sysoev - * Copyright (C) Nginx, Inc. - */ - - -#include <ngx_config.h> -#include <ngx_core.h> -#include <ngx_event.h> -#include <ngx_mail.h> -#include <ngx_mail_smtp_module.h> - - -static void *ngx_mail_smtp_create_srv_conf(ngx_conf_t *cf); -static char *ngx_mail_smtp_merge_srv_conf(ngx_conf_t *cf, void *parent, - void *child); - - -static ngx_conf_bitmask_t ngx_mail_smtp_auth_methods[] = { - { ngx_string("plain"), NGX_MAIL_AUTH_PLAIN_ENABLED }, - { ngx_string("login"), NGX_MAIL_AUTH_LOGIN_ENABLED }, - { ngx_string("cram-md5"), NGX_MAIL_AUTH_CRAM_MD5_ENABLED }, - { ngx_string("external"), NGX_MAIL_AUTH_EXTERNAL_ENABLED }, - { ngx_string("none"), NGX_MAIL_AUTH_NONE_ENABLED }, - { ngx_null_string, 0 } -}; - - -static ngx_str_t ngx_mail_smtp_auth_methods_names[] = { - ngx_string("PLAIN"), - ngx_string("LOGIN"), - ngx_null_string, /* APOP */ - ngx_string("CRAM-MD5"), - ngx_string("EXTERNAL"), - ngx_null_string /* NONE */ -}; - - -static ngx_mail_protocol_t ngx_mail_smtp_protocol = { - ngx_string("smtp"), - { 25, 465, 587, 0 }, - NGX_MAIL_SMTP_PROTOCOL, - - ngx_mail_smtp_init_session, - ngx_mail_smtp_init_protocol, - ngx_mail_smtp_parse_command, - ngx_mail_smtp_auth_state, - - ngx_string("451 4.3.2 Internal server error" CRLF), - ngx_string("421 4.7.1 SSL certificate error" CRLF), - ngx_string("421 4.7.1 No required SSL certificate" CRLF) -}; - - -static ngx_command_t ngx_mail_smtp_commands[] = { - - { ngx_string("smtp_client_buffer"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, - ngx_conf_set_size_slot, - NGX_MAIL_SRV_CONF_OFFSET, - offsetof(ngx_mail_smtp_srv_conf_t, client_buffer_size), - NULL }, - - { ngx_string("smtp_greeting_delay"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, - ngx_conf_set_msec_slot, - NGX_MAIL_SRV_CONF_OFFSET, - offsetof(ngx_mail_smtp_srv_conf_t, greeting_delay), - NULL }, - - { ngx_string("smtp_capabilities"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_1MORE, - ngx_mail_capabilities, - NGX_MAIL_SRV_CONF_OFFSET, - offsetof(ngx_mail_smtp_srv_conf_t, capabilities), - NULL }, - - { ngx_string("smtp_auth"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_1MORE, - ngx_conf_set_bitmask_slot, - NGX_MAIL_SRV_CONF_OFFSET, - offsetof(ngx_mail_smtp_srv_conf_t, auth_methods), - &ngx_mail_smtp_auth_methods }, - - ngx_null_command -}; - - -static ngx_mail_module_t ngx_mail_smtp_module_ctx = { - &ngx_mail_smtp_protocol, /* protocol */ - - NULL, /* create main configuration */ - NULL, /* init main configuration */ - - ngx_mail_smtp_create_srv_conf, /* create server configuration */ - ngx_mail_smtp_merge_srv_conf /* merge server configuration */ -}; - - -ngx_module_t ngx_mail_smtp_module = { - NGX_MODULE_V1, - &ngx_mail_smtp_module_ctx, /* module context */ - ngx_mail_smtp_commands, /* module directives */ - NGX_MAIL_MODULE, /* module type */ - NULL, /* init master */ - NULL, /* init module */ - NULL, /* init process */ - NULL, /* init thread */ - NULL, /* exit thread */ - NULL, /* exit process */ - NULL, /* exit master */ - NGX_MODULE_V1_PADDING -}; - - -static void * -ngx_mail_smtp_create_srv_conf(ngx_conf_t *cf) -{ - ngx_mail_smtp_srv_conf_t *sscf; - - sscf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_smtp_srv_conf_t)); - if (sscf == NULL) { - return NULL; - } - - sscf->client_buffer_size = NGX_CONF_UNSET_SIZE; - sscf->greeting_delay = NGX_CONF_UNSET_MSEC; - - if (ngx_array_init(&sscf->capabilities, cf->pool, 4, sizeof(ngx_str_t)) - != NGX_OK) - { - return NULL; - } - - return sscf; -} - - -static char * -ngx_mail_smtp_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) -{ - ngx_mail_smtp_srv_conf_t *prev = parent; - ngx_mail_smtp_srv_conf_t *conf = child; - - u_char *p, *auth, *last; - size_t size; - ngx_str_t *c; - ngx_uint_t i, m, auth_enabled; - ngx_mail_core_srv_conf_t *cscf; - - ngx_conf_merge_size_value(conf->client_buffer_size, - prev->client_buffer_size, - (size_t) ngx_pagesize); - - ngx_conf_merge_msec_value(conf->greeting_delay, - prev->greeting_delay, 0); - - ngx_conf_merge_bitmask_value(conf->auth_methods, - prev->auth_methods, - (NGX_CONF_BITMASK_SET - |NGX_MAIL_AUTH_PLAIN_ENABLED - |NGX_MAIL_AUTH_LOGIN_ENABLED)); - - - cscf = ngx_mail_conf_get_module_srv_conf(cf, ngx_mail_core_module); - - size = sizeof("220 ESMTP ready" CRLF) - 1 + cscf->server_name.len; - - p = ngx_pnalloc(cf->pool, size); - if (p == NULL) { - return NGX_CONF_ERROR; - } - - conf->greeting.len = size; - conf->greeting.data = p; - - *p++ = '2'; *p++ = '2'; *p++ = '0'; *p++ = ' '; - p = ngx_cpymem(p, cscf->server_name.data, cscf->server_name.len); - ngx_memcpy(p, " ESMTP ready" CRLF, sizeof(" ESMTP ready" CRLF) - 1); - - - size = sizeof("250 " CRLF) - 1 + cscf->server_name.len; - - p = ngx_pnalloc(cf->pool, size); - if (p == NULL) { - return NGX_CONF_ERROR; - } - - conf->server_name.len = size; - conf->server_name.data = p; - - *p++ = '2'; *p++ = '5'; *p++ = '0'; *p++ = ' '; - p = ngx_cpymem(p, cscf->server_name.data, cscf->server_name.len); - *p++ = CR; *p = LF; - - - if (conf->capabilities.nelts == 0) { - conf->capabilities = prev->capabilities; - } - - size = sizeof("250-") - 1 + cscf->server_name.len + sizeof(CRLF) - 1; - - c = conf->capabilities.elts; - for (i = 0; i < conf->capabilities.nelts; i++) { - size += sizeof("250 ") - 1 + c[i].len + sizeof(CRLF) - 1; - } - - auth_enabled = 0; - - for (m = NGX_MAIL_AUTH_PLAIN_ENABLED, i = 0; - m <= NGX_MAIL_AUTH_EXTERNAL_ENABLED; - m <<= 1, i++) - { - if (m & conf->auth_methods) { - size += 1 + ngx_mail_smtp_auth_methods_names[i].len; - auth_enabled = 1; - } - } - - if (auth_enabled) { - size += sizeof("250 AUTH") - 1 + sizeof(CRLF) - 1; - } - - p = ngx_pnalloc(cf->pool, size); - if (p == NULL) { - return NGX_CONF_ERROR; - } - - conf->capability.len = size; - conf->capability.data = p; - - last = p; - - *p++ = '2'; *p++ = '5'; *p++ = '0'; *p++ = '-'; - p = ngx_cpymem(p, cscf->server_name.data, cscf->server_name.len); - *p++ = CR; *p++ = LF; - - for (i = 0; i < conf->capabilities.nelts; i++) { - last = p; - *p++ = '2'; *p++ = '5'; *p++ = '0'; *p++ = '-'; - p = ngx_cpymem(p, c[i].data, c[i].len); - *p++ = CR; *p++ = LF; - } - - auth = p; - - if (auth_enabled) { - last = p; - - *p++ = '2'; *p++ = '5'; *p++ = '0'; *p++ = ' '; - *p++ = 'A'; *p++ = 'U'; *p++ = 'T'; *p++ = 'H'; - - for (m = NGX_MAIL_AUTH_PLAIN_ENABLED, i = 0; - m <= NGX_MAIL_AUTH_EXTERNAL_ENABLED; - m <<= 1, i++) - { - if (m & conf->auth_methods) { - *p++ = ' '; - p = ngx_cpymem(p, ngx_mail_smtp_auth_methods_names[i].data, - ngx_mail_smtp_auth_methods_names[i].len); - } - } - - *p++ = CR; *p = LF; - - } else { - last[3] = ' '; - } - - size += sizeof("250 STARTTLS" CRLF) - 1; - - p = ngx_pnalloc(cf->pool, size); - if (p == NULL) { - return NGX_CONF_ERROR; - } - - conf->starttls_capability.len = size; - conf->starttls_capability.data = p; - - p = ngx_cpymem(p, conf->capability.data, conf->capability.len); - - ngx_memcpy(p, "250 STARTTLS" CRLF, sizeof("250 STARTTLS" CRLF) - 1); - - p = conf->starttls_capability.data - + (last - conf->capability.data) + 3; - *p = '-'; - - size = (auth - conf->capability.data) - + sizeof("250 STARTTLS" CRLF) - 1; - - p = ngx_pnalloc(cf->pool, size); - if (p == NULL) { - return NGX_CONF_ERROR; - } - - conf->starttls_only_capability.len = size; - conf->starttls_only_capability.data = p; - - p = ngx_cpymem(p, conf->capability.data, auth - conf->capability.data); - - ngx_memcpy(p, "250 STARTTLS" CRLF, sizeof("250 STARTTLS" CRLF) - 1); - - if (last < auth) { - p = conf->starttls_only_capability.data - + (last - conf->capability.data) + 3; - *p = '-'; - } - - return NGX_CONF_OK; -} diff --git a/nginx/src/mail/ngx_mail_smtp_module.h b/nginx/src/mail/ngx_mail_smtp_module.h deleted file mode 100644 index 04ffab6..0000000 --- a/nginx/src/mail/ngx_mail_smtp_module.h +++ /dev/null @@ -1,45 +0,0 @@ - -/* - * Copyright (C) Igor Sysoev - * Copyright (C) Nginx, Inc. - */ - - -#ifndef _NGX_MAIL_SMTP_MODULE_H_INCLUDED_ -#define _NGX_MAIL_SMTP_MODULE_H_INCLUDED_ - - -#include <ngx_config.h> -#include <ngx_core.h> -#include <ngx_mail.h> -#include <ngx_mail_smtp_module.h> - - -typedef struct { - ngx_msec_t greeting_delay; - - size_t client_buffer_size; - - ngx_str_t capability; - ngx_str_t starttls_capability; - ngx_str_t starttls_only_capability; - - ngx_str_t server_name; - ngx_str_t greeting; - - ngx_uint_t auth_methods; - - ngx_array_t capabilities; -} ngx_mail_smtp_srv_conf_t; - - -void ngx_mail_smtp_init_session(ngx_mail_session_t *s, ngx_connection_t *c); -void ngx_mail_smtp_init_protocol(ngx_event_t *rev); -void ngx_mail_smtp_auth_state(ngx_event_t *rev); -ngx_int_t ngx_mail_smtp_parse_command(ngx_mail_session_t *s); - - -extern ngx_module_t ngx_mail_smtp_module; - - -#endif /* _NGX_MAIL_SMTP_MODULE_H_INCLUDED_ */ diff --git a/nginx/src/mail/ngx_mail_ssl_module.c b/nginx/src/mail/ngx_mail_ssl_module.c deleted file mode 100644 index aebd179..0000000 --- a/nginx/src/mail/ngx_mail_ssl_module.c +++ /dev/null @@ -1,662 +0,0 @@ - -/* - * Copyright (C) Igor Sysoev - * Copyright (C) Nginx, Inc. - */ - - -#include <ngx_config.h> -#include <ngx_core.h> -#include <ngx_mail.h> - - -#define NGX_DEFAULT_CIPHERS "HIGH:!aNULL:!MD5" -#define NGX_DEFAULT_ECDH_CURVE "auto" - - -static void *ngx_mail_ssl_create_conf(ngx_conf_t *cf); -static char *ngx_mail_ssl_merge_conf(ngx_conf_t *cf, void *parent, void *child); - -static char *ngx_mail_ssl_enable(ngx_conf_t *cf, ngx_command_t *cmd, - void *conf); -static char *ngx_mail_ssl_starttls(ngx_conf_t *cf, ngx_command_t *cmd, - void *conf); -static char *ngx_mail_ssl_password_file(ngx_conf_t *cf, ngx_command_t *cmd, - void *conf); -static char *ngx_mail_ssl_session_cache(ngx_conf_t *cf, ngx_command_t *cmd, - void *conf); - - -static ngx_conf_enum_t ngx_mail_starttls_state[] = { - { ngx_string("off"), NGX_MAIL_STARTTLS_OFF }, - { ngx_string("on"), NGX_MAIL_STARTTLS_ON }, - { ngx_string("only"), NGX_MAIL_STARTTLS_ONLY }, - { ngx_null_string, 0 } -}; - - - -static ngx_conf_bitmask_t ngx_mail_ssl_protocols[] = { - { ngx_string("SSLv2"), NGX_SSL_SSLv2 }, - { ngx_string("SSLv3"), NGX_SSL_SSLv3 }, - { ngx_string("TLSv1"), NGX_SSL_TLSv1 }, - { ngx_string("TLSv1.1"), NGX_SSL_TLSv1_1 }, - { ngx_string("TLSv1.2"), NGX_SSL_TLSv1_2 }, - { ngx_string("TLSv1.3"), NGX_SSL_TLSv1_3 }, - { ngx_null_string, 0 } -}; - - -static ngx_conf_enum_t ngx_mail_ssl_verify[] = { - { ngx_string("off"), 0 }, - { ngx_string("on"), 1 }, - { ngx_string("optional"), 2 }, - { ngx_string("optional_no_ca"), 3 }, - { ngx_null_string, 0 } -}; - - -static ngx_command_t ngx_mail_ssl_commands[] = { - - { ngx_string("ssl"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_FLAG, - ngx_mail_ssl_enable, - NGX_MAIL_SRV_CONF_OFFSET, - offsetof(ngx_mail_ssl_conf_t, enable), - NULL }, - - { ngx_string("starttls"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, - ngx_mail_ssl_starttls, - NGX_MAIL_SRV_CONF_OFFSET, - offsetof(ngx_mail_ssl_conf_t, starttls), - ngx_mail_starttls_state }, - - { ngx_string("ssl_certificate"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, - ngx_conf_set_str_array_slot, - NGX_MAIL_SRV_CONF_OFFSET, - offsetof(ngx_mail_ssl_conf_t, certificates), - NULL }, - - { ngx_string("ssl_certificate_key"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, - ngx_conf_set_str_array_slot, - NGX_MAIL_SRV_CONF_OFFSET, - offsetof(ngx_mail_ssl_conf_t, certificate_keys), - NULL }, - - { ngx_string("ssl_password_file"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, - ngx_mail_ssl_password_file, - NGX_MAIL_SRV_CONF_OFFSET, - 0, - NULL }, - - { ngx_string("ssl_dhparam"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, - ngx_conf_set_str_slot, - NGX_MAIL_SRV_CONF_OFFSET, - offsetof(ngx_mail_ssl_conf_t, dhparam), - NULL }, - - { ngx_string("ssl_ecdh_curve"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, - ngx_conf_set_str_slot, - NGX_MAIL_SRV_CONF_OFFSET, - offsetof(ngx_mail_ssl_conf_t, ecdh_curve), - NULL }, - - { ngx_string("ssl_protocols"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_1MORE, - ngx_conf_set_bitmask_slot, - NGX_MAIL_SRV_CONF_OFFSET, - offsetof(ngx_mail_ssl_conf_t, protocols), - &ngx_mail_ssl_protocols }, - - { ngx_string("ssl_ciphers"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, - ngx_conf_set_str_slot, - NGX_MAIL_SRV_CONF_OFFSET, - offsetof(ngx_mail_ssl_conf_t, ciphers), - NULL }, - - { ngx_string("ssl_prefer_server_ciphers"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_FLAG, - ngx_conf_set_flag_slot, - NGX_MAIL_SRV_CONF_OFFSET, - offsetof(ngx_mail_ssl_conf_t, prefer_server_ciphers), - NULL }, - - { ngx_string("ssl_session_cache"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE12, - ngx_mail_ssl_session_cache, - NGX_MAIL_SRV_CONF_OFFSET, - 0, - NULL }, - - { ngx_string("ssl_session_tickets"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_FLAG, - ngx_conf_set_flag_slot, - NGX_MAIL_SRV_CONF_OFFSET, - offsetof(ngx_mail_ssl_conf_t, session_tickets), - NULL }, - - { ngx_string("ssl_session_ticket_key"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, - ngx_conf_set_str_array_slot, - NGX_MAIL_SRV_CONF_OFFSET, - offsetof(ngx_mail_ssl_conf_t, session_ticket_keys), - NULL }, - - { ngx_string("ssl_session_timeout"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, - ngx_conf_set_sec_slot, - NGX_MAIL_SRV_CONF_OFFSET, - offsetof(ngx_mail_ssl_conf_t, session_timeout), - NULL }, - - { ngx_string("ssl_verify_client"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, - ngx_conf_set_enum_slot, - NGX_MAIL_SRV_CONF_OFFSET, - offsetof(ngx_mail_ssl_conf_t, verify), - &ngx_mail_ssl_verify }, - - { ngx_string("ssl_verify_depth"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, - ngx_conf_set_num_slot, - NGX_MAIL_SRV_CONF_OFFSET, - offsetof(ngx_mail_ssl_conf_t, verify_depth), - NULL }, - - { ngx_string("ssl_client_certificate"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, - ngx_conf_set_str_slot, - NGX_MAIL_SRV_CONF_OFFSET, - offsetof(ngx_mail_ssl_conf_t, client_certificate), - NULL }, - - { ngx_string("ssl_trusted_certificate"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, - ngx_conf_set_str_slot, - NGX_MAIL_SRV_CONF_OFFSET, - offsetof(ngx_mail_ssl_conf_t, trusted_certificate), - NULL }, - - { ngx_string("ssl_crl"), - NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, - ngx_conf_set_str_slot, - NGX_MAIL_SRV_CONF_OFFSET, - offsetof(ngx_mail_ssl_conf_t, crl), - NULL }, - - ngx_null_command -}; - - -static ngx_mail_module_t ngx_mail_ssl_module_ctx = { - NULL, /* protocol */ - - NULL, /* create main configuration */ - NULL, /* init main configuration */ - - ngx_mail_ssl_create_conf, /* create server configuration */ - ngx_mail_ssl_merge_conf /* merge server configuration */ -}; - - -ngx_module_t ngx_mail_ssl_module = { - NGX_MODULE_V1, - &ngx_mail_ssl_module_ctx, /* module context */ - ngx_mail_ssl_commands, /* module directives */ - NGX_MAIL_MODULE, /* module type */ - NULL, /* init master */ - NULL, /* init module */ - NULL, /* init process */ - NULL, /* init thread */ - NULL, /* exit thread */ - NULL, /* exit process */ - NULL, /* exit master */ - NGX_MODULE_V1_PADDING -}; - - -static ngx_str_t ngx_mail_ssl_sess_id_ctx = ngx_string("MAIL"); - - -static void * -ngx_mail_ssl_create_conf(ngx_conf_t *cf) -{ - ngx_mail_ssl_conf_t *scf; - - scf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_ssl_conf_t)); - if (scf == NULL) { - return NULL; - } - - /* - * set by ngx_pcalloc(): - * - * scf->protocols = 0; - * scf->dhparam = { 0, NULL }; - * scf->ecdh_curve = { 0, NULL }; - * scf->client_certificate = { 0, NULL }; - * scf->trusted_certificate = { 0, NULL }; - * scf->crl = { 0, NULL }; - * scf->ciphers = { 0, NULL }; - * scf->shm_zone = NULL; - */ - - scf->enable = NGX_CONF_UNSET; - scf->starttls = NGX_CONF_UNSET_UINT; - scf->certificates = NGX_CONF_UNSET_PTR; - scf->certificate_keys = NGX_CONF_UNSET_PTR; - scf->passwords = NGX_CONF_UNSET_PTR; - scf->prefer_server_ciphers = NGX_CONF_UNSET; - scf->verify = NGX_CONF_UNSET_UINT; - scf->verify_depth = NGX_CONF_UNSET_UINT; - scf->builtin_session_cache = NGX_CONF_UNSET; - scf->session_timeout = NGX_CONF_UNSET; - scf->session_tickets = NGX_CONF_UNSET; - scf->session_ticket_keys = NGX_CONF_UNSET_PTR; - - return scf; -} - - -static char * -ngx_mail_ssl_merge_conf(ngx_conf_t *cf, void *parent, void *child) -{ - ngx_mail_ssl_conf_t *prev = parent; - ngx_mail_ssl_conf_t *conf = child; - - char *mode; - ngx_pool_cleanup_t *cln; - - ngx_conf_merge_value(conf->enable, prev->enable, 0); - ngx_conf_merge_uint_value(conf->starttls, prev->starttls, - NGX_MAIL_STARTTLS_OFF); - - ngx_conf_merge_value(conf->session_timeout, - prev->session_timeout, 300); - - ngx_conf_merge_value(conf->prefer_server_ciphers, - prev->prefer_server_ciphers, 0); - - ngx_conf_merge_bitmask_value(conf->protocols, prev->protocols, - (NGX_CONF_BITMASK_SET|NGX_SSL_TLSv1 - |NGX_SSL_TLSv1_1|NGX_SSL_TLSv1_2)); - - ngx_conf_merge_uint_value(conf->verify, prev->verify, 0); - ngx_conf_merge_uint_value(conf->verify_depth, prev->verify_depth, 1); - - ngx_conf_merge_ptr_value(conf->certificates, prev->certificates, NULL); - ngx_conf_merge_ptr_value(conf->certificate_keys, prev->certificate_keys, - NULL); - - ngx_conf_merge_ptr_value(conf->passwords, prev->passwords, NULL); - - ngx_conf_merge_str_value(conf->dhparam, prev->dhparam, ""); - - ngx_conf_merge_str_value(conf->ecdh_curve, prev->ecdh_curve, - NGX_DEFAULT_ECDH_CURVE); - - ngx_conf_merge_str_value(conf->client_certificate, - prev->client_certificate, ""); - ngx_conf_merge_str_value(conf->trusted_certificate, - prev->trusted_certificate, ""); - ngx_conf_merge_str_value(conf->crl, prev->crl, ""); - - ngx_conf_merge_str_value(conf->ciphers, prev->ciphers, NGX_DEFAULT_CIPHERS); - - - conf->ssl.log = cf->log; - - if (conf->enable) { - mode = "ssl"; - - } else if (conf->starttls != NGX_MAIL_STARTTLS_OFF) { - mode = "starttls"; - - } else { - mode = ""; - } - - if (conf->file == NULL) { - conf->file = prev->file; - conf->line = prev->line; - } - - if (*mode) { - - if (conf->certificates == NULL) { - ngx_log_error(NGX_LOG_EMERG, cf->log, 0, - "no \"ssl_certificate\" is defined for " - "the \"%s\" directive in %s:%ui", - mode, conf->file, conf->line); - return NGX_CONF_ERROR; - } - - if (conf->certificate_keys == NULL) { - ngx_log_error(NGX_LOG_EMERG, cf->log, 0, - "no \"ssl_certificate_key\" is defined for " - "the \"%s\" directive in %s:%ui", - mode, conf->file, conf->line); - return NGX_CONF_ERROR; - } - - if (conf->certificate_keys->nelts < conf->certificates->nelts) { - ngx_log_error(NGX_LOG_EMERG, cf->log, 0, - "no \"ssl_certificate_key\" is defined " - "for certificate \"%V\" and " - "the \"ssl\" directive in %s:%ui", - ((ngx_str_t *) conf->certificates->elts) - + conf->certificates->nelts - 1, - conf->file, conf->line); - return NGX_CONF_ERROR; - } - - } else { - - if (conf->certificates == NULL) { - return NGX_CONF_OK; - } - - if (conf->certificate_keys == NULL - || conf->certificate_keys->nelts < conf->certificates->nelts) - { - ngx_log_error(NGX_LOG_EMERG, cf->log, 0, - "no \"ssl_certificate_key\" is defined " - "for certificate \"%V\"", - ((ngx_str_t *) conf->certificates->elts) - + conf->certificates->nelts - 1); - return NGX_CONF_ERROR; - } - } - - if (ngx_ssl_create(&conf->ssl, conf->protocols, NULL) != NGX_OK) { - return NGX_CONF_ERROR; - } - - cln = ngx_pool_cleanup_add(cf->pool, 0); - if (cln == NULL) { - return NGX_CONF_ERROR; - } - - cln->handler = ngx_ssl_cleanup_ctx; - cln->data = &conf->ssl; - - if (ngx_ssl_certificates(cf, &conf->ssl, conf->certificates, - conf->certificate_keys, conf->passwords) - != NGX_OK) - { - return NGX_CONF_ERROR; - } - - if (conf->verify) { - - if (conf->client_certificate.len == 0 && conf->verify != 3) { - ngx_log_error(NGX_LOG_EMERG, cf->log, 0, - "no ssl_client_certificate for ssl_client_verify"); - return NGX_CONF_ERROR; - } - - if (ngx_ssl_client_certificate(cf, &conf->ssl, - &conf->client_certificate, - conf->verify_depth) - != NGX_OK) - { - return NGX_CONF_ERROR; - } - - if (ngx_ssl_trusted_certificate(cf, &conf->ssl, - &conf->trusted_certificate, - conf->verify_depth) - != NGX_OK) - { - return NGX_CONF_ERROR; - } - - if (ngx_ssl_crl(cf, &conf->ssl, &conf->crl) != NGX_OK) { - return NGX_CONF_ERROR; - } - } - - if (ngx_ssl_ciphers(cf, &conf->ssl, &conf->ciphers, - conf->prefer_server_ciphers) - != NGX_OK) - { - return NGX_CONF_ERROR; - } - - if (ngx_ssl_dhparam(cf, &conf->ssl, &conf->dhparam) != NGX_OK) { - return NGX_CONF_ERROR; - } - - if (ngx_ssl_ecdh_curve(cf, &conf->ssl, &conf->ecdh_curve) != NGX_OK) { - return NGX_CONF_ERROR; - } - - ngx_conf_merge_value(conf->builtin_session_cache, - prev->builtin_session_cache, NGX_SSL_NONE_SCACHE); - - if (conf->shm_zone == NULL) { - conf->shm_zone = prev->shm_zone; - } - - if (ngx_ssl_session_cache(&conf->ssl, &ngx_mail_ssl_sess_id_ctx, - conf->builtin_session_cache, - conf->shm_zone, conf->session_timeout) - != NGX_OK) - { - return NGX_CONF_ERROR; - } - - ngx_conf_merge_value(conf->session_tickets, - prev->session_tickets, 1); - -#ifdef SSL_OP_NO_TICKET - if (!conf->session_tickets) { - SSL_CTX_set_options(conf->ssl.ctx, SSL_OP_NO_TICKET); - } -#endif - - ngx_conf_merge_ptr_value(conf->session_ticket_keys, - prev->session_ticket_keys, NULL); - - if (ngx_ssl_session_ticket_keys(cf, &conf->ssl, conf->session_ticket_keys) - != NGX_OK) - { - return NGX_CONF_ERROR; - } - - return NGX_CONF_OK; -} - - -static char * -ngx_mail_ssl_enable(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) -{ - ngx_mail_ssl_conf_t *scf = conf; - - char *rv; - - rv = ngx_conf_set_flag_slot(cf, cmd, conf); - - if (rv != NGX_CONF_OK) { - return rv; - } - - if (scf->enable && (ngx_int_t) scf->starttls > NGX_MAIL_STARTTLS_OFF) { - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "\"starttls\" directive conflicts with \"ssl on\""); - return NGX_CONF_ERROR; - } - - scf->file = cf->conf_file->file.name.data; - scf->line = cf->conf_file->line; - - return NGX_CONF_OK; -} - - -static char * -ngx_mail_ssl_starttls(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) -{ - ngx_mail_ssl_conf_t *scf = conf; - - char *rv; - - rv = ngx_conf_set_enum_slot(cf, cmd, conf); - - if (rv != NGX_CONF_OK) { - return rv; - } - - if (scf->enable == 1 && (ngx_int_t) scf->starttls > NGX_MAIL_STARTTLS_OFF) { - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "\"ssl\" directive conflicts with \"starttls\""); - return NGX_CONF_ERROR; - } - - scf->file = cf->conf_file->file.name.data; - scf->line = cf->conf_file->line; - - return NGX_CONF_OK; -} - - -static char * -ngx_mail_ssl_password_file(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) -{ - ngx_mail_ssl_conf_t *scf = conf; - - ngx_str_t *value; - - if (scf->passwords != NGX_CONF_UNSET_PTR) { - return "is duplicate"; - } - - value = cf->args->elts; - - scf->passwords = ngx_ssl_read_password_file(cf, &value[1]); - - if (scf->passwords == NULL) { - return NGX_CONF_ERROR; - } - - return NGX_CONF_OK; -} - - -static char * -ngx_mail_ssl_session_cache(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) -{ - ngx_mail_ssl_conf_t *scf = conf; - - size_t len; - ngx_str_t *value, name, size; - ngx_int_t n; - ngx_uint_t i, j; - - value = cf->args->elts; - - for (i = 1; i < cf->args->nelts; i++) { - - if (ngx_strcmp(value[i].data, "off") == 0) { - scf->builtin_session_cache = NGX_SSL_NO_SCACHE; - continue; - } - - if (ngx_strcmp(value[i].data, "none") == 0) { - scf->builtin_session_cache = NGX_SSL_NONE_SCACHE; - continue; - } - - if (ngx_strcmp(value[i].data, "builtin") == 0) { - scf->builtin_session_cache = NGX_SSL_DFLT_BUILTIN_SCACHE; - continue; - } - - if (value[i].len > sizeof("builtin:") - 1 - && ngx_strncmp(value[i].data, "builtin:", sizeof("builtin:") - 1) - == 0) - { - n = ngx_atoi(value[i].data + sizeof("builtin:") - 1, - value[i].len - (sizeof("builtin:") - 1)); - - if (n == NGX_ERROR) { - goto invalid; - } - - scf->builtin_session_cache = n; - - continue; - } - - if (value[i].len > sizeof("shared:") - 1 - && ngx_strncmp(value[i].data, "shared:", sizeof("shared:") - 1) - == 0) - { - len = 0; - - for (j = sizeof("shared:") - 1; j < value[i].len; j++) { - if (value[i].data[j] == ':') { - break; - } - - len++; - } - - if (len == 0) { - goto invalid; - } - - name.len = len; - name.data = value[i].data + sizeof("shared:") - 1; - - size.len = value[i].len - j - 1; - size.data = name.data + len + 1; - - n = ngx_parse_size(&size); - - if (n == NGX_ERROR) { - goto invalid; - } - - if (n < (ngx_int_t) (8 * ngx_pagesize)) { - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "session cache \"%V\" is too small", - &value[i]); - - return NGX_CONF_ERROR; - } - - scf->shm_zone = ngx_shared_memory_add(cf, &name, n, - &ngx_mail_ssl_module); - if (scf->shm_zone == NULL) { - return NGX_CONF_ERROR; - } - - scf->shm_zone->init = ngx_ssl_session_cache_init; - - continue; - } - - goto invalid; - } - - if (scf->shm_zone && scf->builtin_session_cache == NGX_CONF_UNSET) { - scf->builtin_session_cache = NGX_SSL_NO_BUILTIN_SCACHE; - } - - return NGX_CONF_OK; - -invalid: - - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "invalid session cache \"%V\"", &value[i]); - - return NGX_CONF_ERROR; -} diff --git a/nginx/src/mail/ngx_mail_ssl_module.h b/nginx/src/mail/ngx_mail_ssl_module.h deleted file mode 100644 index 26628d5..0000000 --- a/nginx/src/mail/ngx_mail_ssl_module.h +++ /dev/null @@ -1,64 +0,0 @@ - -/* - * Copyright (C) Igor Sysoev - * Copyright (C) Nginx, Inc. - */ - - -#ifndef _NGX_MAIL_SSL_H_INCLUDED_ -#define _NGX_MAIL_SSL_H_INCLUDED_ - - -#include <ngx_config.h> -#include <ngx_core.h> -#include <ngx_mail.h> - - -#define NGX_MAIL_STARTTLS_OFF 0 -#define NGX_MAIL_STARTTLS_ON 1 -#define NGX_MAIL_STARTTLS_ONLY 2 - - -typedef struct { - ngx_flag_t enable; - ngx_flag_t prefer_server_ciphers; - - ngx_ssl_t ssl; - - ngx_uint_t starttls; - ngx_uint_t protocols; - - ngx_uint_t verify; - ngx_uint_t verify_depth; - - ssize_t builtin_session_cache; - - time_t session_timeout; - - ngx_array_t *certificates; - ngx_array_t *certificate_keys; - - ngx_str_t dhparam; - ngx_str_t ecdh_curve; - ngx_str_t client_certificate; - ngx_str_t trusted_certificate; - ngx_str_t crl; - - ngx_str_t ciphers; - - ngx_array_t *passwords; - - ngx_shm_zone_t *shm_zone; - - ngx_flag_t session_tickets; - ngx_array_t *session_ticket_keys; - - u_char *file; - ngx_uint_t line; -} ngx_mail_ssl_conf_t; - - -extern ngx_module_t ngx_mail_ssl_module; - - -#endif /* _NGX_MAIL_SSL_H_INCLUDED_ */ |